1
|
Korenjak M, Temiz NA, Keita S, Chavanel B, Renard C, Sirand C, Cahais V, Mayel T, Vevang KR, Jacobs FC, Guo J, Smith WE, Oram MK, Tăbăran FA, Ahlat O, Cornax I, O'Sullivan MG, Das S, Nandi SP, Cheng Y, Alexandrov LB, Balbo S, Hecht SS, Senkin S, Virard F, Peterson LA, Zavadil J. Human cancer genomes harbor the mutational signature of tobacco-specific nitrosamines NNN and NNK. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.28.600253. [PMID: 38979250 PMCID: PMC11230374 DOI: 10.1101/2024.06.28.600253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Tobacco usage is linked to multiple cancer types and accounts for a quarter of all cancer-related deaths. Tobacco smoke contains various carcinogenic compounds, including polycyclic aromatic hydrocarbons (PAH), though the mutagenic potential of many tobacco-related chemicals remains largely unexplored. In particular, the highly carcinogenic tobacco-specific nitrosamines NNN and NNK form pre-mutagenic pyridyloxobutyl (POB) DNA adducts. In the study presented here, we identified genome-scale POB-induced mutational signatures in cell lines and rat tumors, while also investigating their role in human cancer. These signatures are characterized by T>N and C>T mutations forming from specific POB adducts damaging dT and dC residues. Analysis of 2,780 cancer genomes uncovered POB signatures in ∼180 tumors; from cancer types distinct from the ones linked to smoking-related signatures SBS4 and SBS92. This suggests that, unlike PAH compounds, the POB pathway may contribute uniquely to the mutational landscapes of certain hematological malignancies and cancers of the kidney, breast, prostate and pancreas.
Collapse
|
2
|
Bounegru AV, Bounegru I. Acrylamide in food products and the role of electrochemical biosensors in its detection: a comprehensive review. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:2824-2839. [PMID: 38669134 DOI: 10.1039/d4ay00466c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/28/2024]
Abstract
In this review, the mechanisms of acrylamide formation in food, along with aspects related to its toxicity and associated consumption risks, are investigated, highlighting the potential impact on human health. European regulations regarding acrylamide content in food products are also addressed, emphasizing the importance of monitoring and detecting this substance in nutrition, by public health protection measures. The primary objective of the research is to explore and analyze innovative methods for detecting acrylamide in food, with a particular focus on electrochemical biosensors. This research direction is motivated by the need to develop rapid, sensitive, and efficient monitoring techniques for this toxic compound in food products, considering the associated consumption risks. The research has revealed several significant results. Studies have shown that electrochemical biosensors based on hemoglobin exhibited increased sensitivity and low detection limits, capable of detecting very low concentrations of acrylamide in processed foods. Additionally, it has been found that the use of functionalized nanomaterials, such as carbon nanotubes and gold nanoparticles, has led to the improvement of electrochemical biosensor performance in acrylamide detection. The integration of these technological innovations and functionalization strategies has enhanced the sensitivity, specificity, and stability of biosensors in measuring acrylamides. Thus, the results of this research offer promising perspectives for the development of precise and efficient methods for monitoring acrylamides in food, contributing to the improvement of food quality control and the protection of consumer health.
Collapse
Affiliation(s)
- Alexandra Virginia Bounegru
- Department of Chemistry, Physics and Environment, Faculty of Sciences and Environment, "Dunărea de Jos" University of Galaţi, 47 Domnească Street, 800008 Galaţi, Romania.
| | - Iulian Bounegru
- Competences Centre: Interfaces-Tribocorrosion-Electrochemical Systems, "Dunărea de Jos" University of Galati, 47 Domnească Street, 800008 Galati, Romania
| |
Collapse
|
3
|
Iwai S, Hayashi Y, Baba T, Kitagawa Y. Acceleration of hydrolytic ring opening of N7-alkylguanine by the terminal carbamoyl group of glycidamide. Chem Commun (Camb) 2024; 60:5014-5017. [PMID: 38577847 DOI: 10.1039/d3cc04997c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Hydrolytic ring opening of guanine N7-adducts with compounds containing an oxacyclopropane ring, namely glycidamide, glycidol and 1,2-epoxybutane, was analyzed, and the reaction of the glycidamide adduct was the fastest. The differences in the reaction rates were confirmed by theoretical calculations.
Collapse
Affiliation(s)
- Shigenori Iwai
- Division of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
| | - Yuta Hayashi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| | - Tomohiro Baba
- Division of Chemistry, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan.
| | - Yasutaka Kitagawa
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531, Japan
| |
Collapse
|
4
|
Peivasteh-Roudsari L, Karami M, Barzegar-Bafrouei R, Samiee S, Karami H, Tajdar-Oranj B, Mahdavi V, Alizadeh AM, Sadighara P, Oliveri Conti G, Mousavi Khaneghah A. Toxicity, metabolism, and mitigation strategies of acrylamide: a comprehensive review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:1-29. [PMID: 36161963 DOI: 10.1080/09603123.2022.2123907] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Acrylamide, a food-borne chemical toxicant, has raised global concern in recent decades. It mainly originated from reducing sugar and free amino acid interactions in the carbohydrate-rich foodstuffs heated at high temperatures. Due to the neurotoxicity and carcinogenicity of AA, the mechanism of formation, toxic effects on health, and mitigation strategies, including conventional approaches and innovative technologies, have been of great interest since its discovery in food. Potato products (especially French fries and crisps), coffee, and cereals(bread and biscuit) are renowned contributors to AA's daily intake. The best preventive methods discussed in the literature include time/temperature optimization, blanching, enzymatic treatment, yeast treatment, additives, pulsed electric fields, ultrasound, vacuum roasting, air frying, and irradiation, exhibiting a high efficacy in AA elimination in food products.
Collapse
Affiliation(s)
| | - Marziyeh Karami
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Raziyeh Barzegar-Bafrouei
- Department of Food Safety and Hygiene, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Samane Samiee
- Food and Drug Administration, Iran Ministry of Health and Medical Education, Tehran, Iran
| | - Hadis Karami
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Behrouz Tajdar-Oranj
- Food and Drug Administration, Iran Ministry of Health and Medical Education, Tehran, Iran
| | - Vahideh Mahdavi
- Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
| | - Adel Mirza Alizadeh
- Social Determinants of Health Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
- Department of Food Safety and Hygiene, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Parisa Sadighara
- Department of Environmental Health, Food Safety Division, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Gea Oliveri Conti
- Department of Medical, Surgical and Advanced Technologies "G.F. Ingrassia," Hygiene and Public Health, University of Catania, Catania, Italy
| | - Amin Mousavi Khaneghah
- Department of Fruit and Vegetable Product Technology, Prof. Wacław Dąbrowski Institute of Agricultural and Food Biotechnology - State Research Institute, Warsaw, Poland
| |
Collapse
|
5
|
Deneuve S, Fervers B, Senkin S, Bouaoun L, Pérol O, Chavanel B, Lu L, Coste I, Renno T, Zavadil J, Virard F. Molecular landscapes of oral cancers of unknown etiology. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.12.15.23299866. [PMID: 38168303 PMCID: PMC10760302 DOI: 10.1101/2023.12.15.23299866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The incidence of the mobile tongue cancer in young patients has been rising. This oral cancer (OC) type has no identified risk factors (NIRF), no established molecular markers and is not yet recognized as a distinct clinical entity. To understand this emerging malignancy, we innovatively analyzed the public head and neck cancer multi-omics data. We identified mutational signatures that successfully stratified 307 OC and 109 laryngeal cancer cases according to their clinico-pathological characteristics. The NIRF OCs exhibited significantly increased activities of endogenous clock-like and APOBEC-associated mutagenesis, alongside specific cancer driver gene mutations, distinct methylome patterns and prominent antimicrobial transcriptomic responses. Furthermore, we show that mutational signature SBS16 in OCs reflects the combined effects of alcohol drinking and tobacco smoking. Our study characterizes the unique disease histories and molecular programs of the NIRF OCs revealing that this emerging cancer subtype is likely driven by increased endogenous mutagenesis correlated with responses to microbial insults.
Collapse
|
6
|
Delatour T, Stadler RH. Two decades of research in dietary acrylamide: What do we know today. Crit Rev Food Sci Nutr 2023; 63:12169-12177. [PMID: 35852101 DOI: 10.1080/10408398.2022.2099344] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
After nearly two decades since acrylamide was first raised as a potential safety issue in foods, significant progress has been made in understanding its formation during cooking, how to reduce levels in the most concerned foods, and the possible cancer risk to humans. Despite the huge wealth of knowledge gathered on this topic over the past years, a few new discoveries in occurrence, mitigation, analysis and risk assessment are worthy to note. This short review highlights the salient novelties pertaining to acrylamide, particularly in the areas of formation & analysis, existing and possible future regulations in the European Union, and finally considerations that may lead to possibly revisiting the toxicity of acrylamide and the main metabolite, glycidamide.
Collapse
Affiliation(s)
- Thierry Delatour
- Société des Produits Nestlé S.A., Nestlé Research, Lausanne 26, Switzerland
| | - Richard H Stadler
- Société des Produits Nestlé S.A., Nestlé Research, Lausanne 26, Switzerland
| |
Collapse
|
7
|
Hudson KM, Klimczak LJ, Sterling JF, Burkholder AB, Kazanov M, Saini N, Mieczkowski PA, Gordenin DA. Glycidamide-induced hypermutation in yeast single-stranded DNA reveals a ubiquitous clock-like mutational motif in humans. Nucleic Acids Res 2023; 51:9075-9100. [PMID: 37471042 PMCID: PMC10516655 DOI: 10.1093/nar/gkad611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 06/28/2023] [Accepted: 07/10/2023] [Indexed: 07/21/2023] Open
Abstract
Mutagens often prefer specific nucleotides or oligonucleotide motifs that can be revealed by studying the hypermutation spectra in single-stranded (ss) DNA. We utilized a yeast model to explore mutagenesis by glycidamide, a simple epoxide formed endogenously in humans from the environmental toxicant acrylamide. Glycidamide caused ssDNA hypermutation in yeast predominantly in cytosines and adenines. The most frequent mutations in adenines occurred in the nAt→nGt trinucleotide motif. Base substitutions A→G in this motif relied on Rev1 translesion polymerase activity. Inactivating Rev1 did not alter the nAt trinucleotide preference, suggesting it may be an intrinsic specificity of the chemical reaction between glycidamide and adenine in the ssDNA. We found this mutational motif enriched in published sequencing data from glycidamide-treated mouse cells and ubiquitous in human cancers. In cancers, this motif was positively correlated with the single base substitution (SBS) smoking-associated SBS4 signature, with the clock-like signatures SBS1, SBS5, and was strongly correlated with smoking history and with age of tumor donors. Clock-like feature of the motif was also revealed in cells of human skin and brain. Given its pervasiveness, we propose that this mutational motif reflects mutagenic lesions to adenines in ssDNA from a potentially broad range of endogenous and exogenous agents.
Collapse
Affiliation(s)
- Kathleen M Hudson
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, US National Institutes of Health, Durham, NC 27709, USA
| | - Leszek J Klimczak
- Integrative Bioinformatics Support Group, National Institute of Environmental Health Sciences, US National Institutes of Health, Durham, NC 27709, USA
| | - Joan F Sterling
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, US National Institutes of Health, Durham, NC 27709, USA
| | - Adam B Burkholder
- Office of Environmental Science Cyberinfrastructure, National Institute of Environmental Health Sciences, US National Institutes of Health, Durham, NC 27709, USA
| | - Marat D Kazanov
- Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, 34956, Turkey
- Skolkovo Institute of Science and Technology, Moscow 121205, Russia
| | - Natalie Saini
- Department of Biochemistry & Molecular Biology, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Piotr A Mieczkowski
- Department of Genetics, School of Medicine, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Dmitry A Gordenin
- Genome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences, US National Institutes of Health, Durham, NC 27709, USA
| |
Collapse
|
8
|
Kaur N, Halford NG. Reducing the Risk of Acrylamide and Other Processing Contaminant Formation in Wheat Products. Foods 2023; 12:3264. [PMID: 37685197 PMCID: PMC10486470 DOI: 10.3390/foods12173264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/23/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023] Open
Abstract
Wheat is a staple crop, consumed worldwide as a major source of starch and protein. Global intake of wheat has increased in recent years, and overall, wheat is considered to be a healthy food, particularly when products are made from whole grains. However, wheat is almost invariably processed before it is consumed, usually via baking and/or toasting, and this can lead to the formation of toxic processing contaminants, including acrylamide, 5-hydroxymethylfurfural (HMF) and polycyclic aromatic hydrocarbons (PAHs). Acrylamide is principally formed from free (soluble, non-protein) asparagine and reducing sugars (glucose, fructose and maltose) within the Maillard reaction and is classified as a Group 2A carcinogen (probably carcinogenic to humans). It also has neurotoxic and developmental effects at high doses. HMF is also generated within the Maillard reaction but can also be formed via the dehydration of fructose or caramelisation. It is frequently found in bread, biscuits, cookies, and cakes. Its molecular structure points to genotoxicity and carcinogenic risks. PAHs are a large class of chemical compounds, many of which are genotoxic, mutagenic, teratogenic and carcinogenic. They are mostly formed during frying, baking and grilling due to incomplete combustion of organic matter. Production of these processing contaminants can be reduced with changes in recipe and processing parameters, along with effective quality control measures. However, in the case of acrylamide and HMF, their formation is also highly dependent on the concentrations of precursors in the grain. Here, we review the synthesis of these contaminants, factors impacting their production and the mitigation measures that can be taken to reduce their formation in wheat products, focusing on the role of genetics and agronomy. We also review the risk management measures adopted by food safety authorities around the world.
Collapse
|
9
|
Otlu B, Díaz-Gay M, Vermes I, Bergstrom EN, Zhivagui M, Barnes M, Alexandrov LB. Topography of mutational signatures in human cancer. Cell Rep 2023; 42:112930. [PMID: 37540596 PMCID: PMC10507738 DOI: 10.1016/j.celrep.2023.112930] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 05/09/2023] [Accepted: 07/18/2023] [Indexed: 08/06/2023] Open
Abstract
The somatic mutations found in a cancer genome are imprinted by different mutational processes. Each process exhibits a characteristic mutational signature, which can be affected by the genome architecture. However, the interplay between mutational signatures and topographical genomic features has not been extensively explored. Here, we integrate mutations from 5,120 whole-genome-sequenced tumors from 40 cancer types with 516 topographical features from ENCODE to evaluate the effect of nucleosome occupancy, histone modifications, CTCF binding, replication timing, and transcription/replication strand asymmetries on the cancer-specific accumulation of mutations from distinct mutagenic processes. Most mutational signatures are affected by topographical features, with signatures of related etiologies being similarly affected. Certain signatures exhibit periodic behaviors or cancer-type-specific enrichments/depletions near topographical features, revealing further information about the processes that imprinted them. Our findings, disseminated via the COSMIC (Catalog of Somatic Mutations in Cancer) signatures database, provide a comprehensive online resource for exploring the interactions between mutational signatures and topographical features across human cancer.
Collapse
Affiliation(s)
- Burçak Otlu
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA 92093, USA; Department of Bioengineering, UC San Diego, La Jolla, CA 92093, USA; Moores Cancer Center, UC San Diego, La Jolla, CA 92037, USA; Department of Health Informatics, Graduate School of Informatics, Middle East Technical University, Ankara 06800, Turkey
| | - Marcos Díaz-Gay
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA 92093, USA; Department of Bioengineering, UC San Diego, La Jolla, CA 92093, USA; Moores Cancer Center, UC San Diego, La Jolla, CA 92037, USA
| | - Ian Vermes
- COSMIC, Wellcome Sanger Institute, Hinxton, Cambridgeshire CB10 1SA, UK
| | - Erik N Bergstrom
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA 92093, USA; Department of Bioengineering, UC San Diego, La Jolla, CA 92093, USA; Moores Cancer Center, UC San Diego, La Jolla, CA 92037, USA
| | - Maria Zhivagui
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA 92093, USA; Department of Bioengineering, UC San Diego, La Jolla, CA 92093, USA; Moores Cancer Center, UC San Diego, La Jolla, CA 92037, USA
| | - Mark Barnes
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA 92093, USA; Department of Bioengineering, UC San Diego, La Jolla, CA 92093, USA; Moores Cancer Center, UC San Diego, La Jolla, CA 92037, USA
| | - Ludmil B Alexandrov
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA 92093, USA; Department of Bioengineering, UC San Diego, La Jolla, CA 92093, USA; Moores Cancer Center, UC San Diego, La Jolla, CA 92037, USA.
| |
Collapse
|
10
|
Akagi JI, Yokoi M, Miyake Y, Shirai T, Baba T, Cho YM, Hanaoka F, Sugasawa K, Iwai S, Ogawa K. A formamidopyrimidine derivative from the deoxyguanosine adduct produced by food contaminant acrylamide induces DNA replication block and mutagenesis. J Biol Chem 2023; 299:105002. [PMID: 37394003 PMCID: PMC10406624 DOI: 10.1016/j.jbc.2023.105002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 07/04/2023] Open
Abstract
Acrylamide, a common food contaminant, is metabolically activated to glycidamide, which reacts with DNA at the N7 position of dG, forming N7-(2-carbamoyl-2-hydroxyethyl)-dG (GA7dG). Owing to its chemical lability, the mutagenic potency of GA7dG has not yet been clarified. We found that GA7dG undergoes ring-opening hydrolysis to form N6-(2-deoxy-d-erythro-pentofuranosyl)-2,6-diamino-3,4-dihydro-4-oxo-5-[N-(2-carbamoyl-2-hydroxyethyl)formamido]pyrimidine (GA-FAPy-dG), even at neutral pH. Therefore, we aimed to examine the effects of GA-FAPy-dG on the efficiency and fidelity of DNA replication using an oligonucleotide carrying GA-FAPy-9-(2-deoxy-2-fluoro-β-d-arabinofuranosyl)guanine (dfG), a 2'-fluorine substituted analog of GA-FAPy-dG. GA-FAPy-dfG inhibited primer extension by both human replicative DNA polymerase ε and the translesion DNA synthesis polymerases (Polη, Polι, Polκ, and Polζ) and reduced the replication efficiency by less than half in human cells, with single base substitution at the site of GA-FAPy-dfG. Unlike other formamidopyrimidine derivatives, the most abundant mutation was G:C > A:T transition, which was decreased in Polκ- or REV1-KO cells. Molecular modeling suggested that a 2-carbamoyl-2-hydroxyethyl group at the N5 position of GA-FAPy-dfG can form an additional H-bond with thymidine, thereby contributing to the mutation. Collectively, our results provide further insight into the mechanisms underlying the mutagenic effects of acrylamide.
Collapse
Affiliation(s)
- Jun-Ichi Akagi
- Division of Pathology, National Institute of Health Sciences, Kawasaki, Kanagawa, Japan.
| | - Masayuki Yokoi
- Biosignal Research Center, Kobe University, Kobe, Hyogo, Japan
| | - Yumi Miyake
- Forefront Research Center, Graduate School of Science, Osaka University, Toyonaka, Osaka, Japan
| | - Tsuyoshi Shirai
- Department of Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, Japan
| | - Tomohiro Baba
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - Young-Man Cho
- Division of Pathology, National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Fumio Hanaoka
- Biosignal Research Center, Kobe University, Kobe, Hyogo, Japan; National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Kaoru Sugasawa
- Biosignal Research Center, Kobe University, Kobe, Hyogo, Japan
| | - Shigenori Iwai
- Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
| | - Kumiko Ogawa
- Division of Pathology, National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| |
Collapse
|
11
|
A rational approach for 3D recognition and removal of L-asparagine via molecularly imprinted membranes. J Pharm Biomed Anal 2023; 226:115250. [PMID: 36657352 DOI: 10.1016/j.jpba.2023.115250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
In this study, a L-asparagine (L-Asn) imprinted membranes (L-Asn-MIPs) were synthesized via molecular imprinting for selective and efficient removal of L-Asn. The L-Asn-MIP membrane was prepared by using acrylamide (AAm) and hydroxyethyl methacrylate (HEMA) as a functional monomer and a comonomer, respectively. The membrane was characterized by scanning electron microscopy (SEM) and Fourier Transform infrared spectroscopy (FTIR). The L-Asn adsorption capacity of the membrane was investigated in detail. The maximum L-Asn adsorption capacity was determined as 408.2 mg/g at pH: 7.2, 24 °C. Determination of L-Asn binding behaviors of L-Asn-MIPs also shown with Scatchard analyses. The effect of pH on L-Asn adsorption onto the membrane and also the selectivity and reusability of the L-Asn-MIPs for L-Asn adsorption were determined through L-asparaginase (L-ASNase) enzyme activity measurements. The selectivity of the membrane was investigated by using two different ternary mixtures; L-glycine (L-Gly)/L-histidine (L-His)/L-Asn and L-tyrosin (L-Tyr)/L-cystein(L-Cys)/L-Asn. The obtained results showed that the L-Asn-MIP membranes have a high selectivity towards L-Asn.
Collapse
|
12
|
Zhivagui M, Hoda A, Valenzuela N, Yeh YY, Dai J, He Y, Nandi SP, Otlu B, Van Houten B, Alexandrov LB. DNA damage and somatic mutations in mammalian cells after irradiation with a nail polish dryer. Nat Commun 2023; 14:276. [PMID: 36650165 PMCID: PMC9845303 DOI: 10.1038/s41467-023-35876-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 01/05/2023] [Indexed: 01/19/2023] Open
Abstract
Ultraviolet A light is commonly emitted by UV-nail polish dryers with recent reports suggesting that long-term use may increase the risk for developing skin cancer. However, no experimental evaluation has been conducted to reveal the effect of radiation emitted by UV-nail polish dryers on mammalian cells. Here, we show that irradiation by a UV-nail polish dryer causes high levels of reactive oxygen species, consistent with 8-oxo-7,8-dihydroguanine damage and mitochondrial dysfunction. Analysis of somatic mutations reveals a dose-dependent increase of C:G>A:T substitutions in irradiated samples with mutagenic patterns similar to mutational signatures previously attributed to reactive oxygen species. In summary, this study demonstrates that radiation emitted by UV-nail polish dryers can both damage DNA and permanently engrave mutations on the genomes of primary mouse embryonic fibroblasts, human foreskin fibroblasts, and human epidermal keratinocytes.
Collapse
Affiliation(s)
- Maria Zhivagui
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA, 92093, USA.,Department of Bioengineering, UC San Diego, La Jolla, CA, 92093, USA.,Moores Cancer Center, UC San Diego, La Jolla, CA, 92037, USA
| | - Areebah Hoda
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA, 92093, USA
| | | | - Yi-Yu Yeh
- Department of Bioengineering, UC San Diego, La Jolla, CA, 92093, USA
| | - Jason Dai
- Department of Bioengineering, UC San Diego, La Jolla, CA, 92093, USA
| | - Yudou He
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA, 92093, USA.,Department of Bioengineering, UC San Diego, La Jolla, CA, 92093, USA.,Moores Cancer Center, UC San Diego, La Jolla, CA, 92037, USA
| | - Shuvro P Nandi
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA, 92093, USA.,Department of Bioengineering, UC San Diego, La Jolla, CA, 92093, USA.,Moores Cancer Center, UC San Diego, La Jolla, CA, 92037, USA
| | - Burcak Otlu
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA, 92093, USA.,Department of Bioengineering, UC San Diego, La Jolla, CA, 92093, USA.,Moores Cancer Center, UC San Diego, La Jolla, CA, 92037, USA
| | - Bennett Van Houten
- UPMC-Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, 15213, USA
| | - Ludmil B Alexandrov
- Department of Cellular and Molecular Medicine, UC San Diego, La Jolla, CA, 92093, USA. .,Department of Bioengineering, UC San Diego, La Jolla, CA, 92093, USA. .,Moores Cancer Center, UC San Diego, La Jolla, CA, 92037, USA.
| |
Collapse
|
13
|
Wang R, Deng X, Ma Q, Ma F. Association between acrylamide exposure and sex hormones among premenopausal and postmenopausal women: NHANES, 2013-2016. J Endocrinol Invest 2023:10.1007/s40618-022-01976-3. [PMID: 36602706 DOI: 10.1007/s40618-022-01976-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/29/2022] [Indexed: 01/06/2023]
Abstract
PURPOSE Acrylamide (AA) is a potential carcinogen that mainly comes from fried, baked and roasted foods, and Hb adducts of AA (HbAA) and its metabolite glycidamide (HbGA) are the biomarkers of its exposure. Increasing evidence suggests that AA is associated with various hormone-related cancers. This study aims to explore the association of HbAA and HbGA with female serum sex hormone concentrations. METHODS 942 women from the National Health and Nutrition Examination Survey cycles (2013-2016) were included in this cross-sectional study. The associations between HbAA or HbGA or HbGA/HbAA and sex hormones were assessed by the multiple linear regression. Further stratified analyses were conducted to figure out the effects of menopausal status, BMI and smoking status on sex hormone levels. RESULTS Among all participants, 597 were premenopausal and 345 were postmenopausal. HbAA was positively associated with both two androgen indicators. Specifically, a ln-unit increase in HbAA was associated with 0.41 ng/dL higher ln(total testosterone, TT) (95% CI 0.00, 0.27) and 0.14 ng/dL higher ln(free testosterone) (95%CI 0.00, 0.28), respectively. However, HbGA concentrations had no association with sex hormones in the overall population. Additionally, HbGA/HbAA was negatively associated with TT and SHBG in the overall population as well as postmenopausal women. In stratified analysis, higher HbAA was associated with rising TT in postmenopausal women (β = 0.29, 95%CI 0.04, 0.53) and underweight/normal-weight women (β = 0.18, 95%CI 0.03, 0.33). Other indicators had no significant association detected in estradiol and sex hormone-binding globulin. CONCLUSION Our results revealed that HbAA was positively associated with androgen concentrations, especially in postmenopausal and BMI < 25 women.
Collapse
Affiliation(s)
- R Wang
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - X Deng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, Sichuan Province, China
| | - Q Ma
- Department of Obstetrics/Gynecology, Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China
| | - F Ma
- Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
| |
Collapse
|
14
|
Wan X, Zhang Y, Gao S, Shen X, Jia W, Pan X, Zhuang P, Jiao J, Zhang Y. Machine learning prediction of exposure to acrylamide based on modelling of association between dietary exposure and internal biomarkers. Food Chem Toxicol 2022; 170:113498. [PMID: 36328216 DOI: 10.1016/j.fct.2022.113498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 09/09/2022] [Accepted: 10/23/2022] [Indexed: 11/06/2022]
Abstract
The ubiquitous occurrence of acrylamide in various thermal processing food products poses a potential health risk for the public. An accurate exposure assessment is crucial to the risk evaluation of acrylamide. Machine learning emerging as a powerful computational tool for prediction was employed to establish the association between internal exposure and dietary exposure to acrylamide among a Chinese cohort of middle-aged and elderly population (n = 1,272). Five machine learning regression models were constructed and compared to predict the daily dietary acrylamide exposure based on urinary biomarkers including N-acetyl-S-(2-carbamoylethyl)-L-cysteine (AAMA), N-acetyl-S-(2-carbamoylethyl)-L-cysteine-sulfoxide (AAMA-sul), N-acetyl-S-(2-carbamoyl-2-hydroxyethyl)-L-cysteine (GAMA), and N-acetyl-S-(1-carbamoyl-2-hydroxyethyl)-L-cysteine (iso-GAMA). Other important covariates such as age, gender, physical activities, and total energy intake were also considered as predictors in the models. Average dietary intake of acrylamide among Chinese elderly participants was 8.9 μg/day, while average urinary contents of AAMA, AAMA-sul, GAMA, and iso-GAMA were 52.2, 19.1, 4.4, and 1.7 nmol/g Ucr (urine creatinine), respectively. Support vector regression (SVR) model showed the best prediction performance with a R of 0.415, followed by light gradient boosting machine (LightGBM) model (R = 0.396), adjusted multiple linear regression (MLR) model (R = 0.378), neural networks (NN) model (R = 0.365), MLR model (R = 0.363), and extreme gradient boosting (XGBoost) model (R = 0.337). The present study firstly correlated dietary exposure with internal exposure to acrylamide among Chinese elderly population, providing an innovative perspective for the exposure assessment of acrylamide.
Collapse
Affiliation(s)
- Xuzhi Wan
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Yiju Zhang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Sunan Gao
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Xinyi Shen
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Wei Jia
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Xingqi Pan
- School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Pan Zhuang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China
| | - Jingjing Jiao
- Department of Nutrition, School of Public Health, Department of Clinical Nutrition, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, Zhejiang, China
| | - Yu Zhang
- National Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, Zhejiang, China.
| |
Collapse
|
15
|
Das S, Thakur S, Korenjak M, Sidorenko VS, Chung FFL, Zavadil J. Aristolochic acid-associated cancers: a public health risk in need of global action. Nat Rev Cancer 2022; 22:576-591. [PMID: 35854147 DOI: 10.1038/s41568-022-00494-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/15/2022] [Indexed: 11/09/2022]
Abstract
Aristolochic acids (AAs) are a group of naturally occurring compounds present in many plant species of the Aristolochiaceae family. Exposure to AA is a significant risk factor for severe nephropathy, and urological and hepatobiliary cancers (among others) that are often recurrent and characterized by the prominent mutational fingerprint of AA. However, herbal medicinal products that contain AA continue to be manufactured and marketed worldwide with inadequate regulation, and possible environmental exposure routes receive little attention. As the trade of food and dietary supplements becomes increasingly globalized, we propose that further inaction on curtailing AA exposure will have far-reaching negative effects on the disease trends of AA-associated cancers. Our Review aims to systematically present the historical and current evidence for the mutagenicity and carcinogenicity of AA, and the effect of removing sources of AA exposure on cancer incidence trends. We discuss the persisting challenges of assessing the scale of AA-related carcinogenicity, and the obstacles that must be overcome in curbing AA exposure and preventing associated cancers. Overall, this Review aims to strengthen the case for the implementation of prevention measures against AA's multifaceted, detrimental and potentially fully preventable effects on human cancer development.
Collapse
Affiliation(s)
- Samrat Das
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France
| | - Shefali Thakur
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France
- BIOCEV, First Faculty of Medicine, Charles University, Vestec, Czech Republic
- Faculty of Science, Charles University, Prague, Czech Republic
| | - Michael Korenjak
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France
| | - Viktoriya S Sidorenko
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, USA
| | - Felicia Fei-Lei Chung
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France.
- Department of Medical Sciences, School of Medical and Life Sciences, Sunway University, Petaling Jaya, Malaysia.
| | - Jiri Zavadil
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer WHO, Lyon, France.
| |
Collapse
|
16
|
Wang Y, Ouyang H, Xie Y, Jiang Y, Zhao L, Peng W, Wu J, Bao J, Liu Y, Wu J. Mechanically robust, biocompatible, and durable PHEMA-based hydrogels enabled by the synergic effect of strong intermolecular interaction and suppressed phase separation. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
17
|
Kumari A, Bhattacharya B, Agarwal T, Paul V, Chakkaravarthi S. Integrated approach towards acrylamide reduction in potato-based snacks: A critical review. Food Res Int 2022; 156:111172. [DOI: 10.1016/j.foodres.2022.111172] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/16/2022] [Accepted: 03/17/2022] [Indexed: 01/08/2023]
|
18
|
Halford NG, Raffan S, Oddy J. Progress towards the production of potatoes and cereals with low acrylamide-forming potential. Curr Opin Food Sci 2022. [DOI: 10.1016/j.cofs.2022.100887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
19
|
Filippini T, Halldorsson TI, Capitão C, Martins R, Giannakou K, Hogervorst J, Vinceti M, Åkesson A, Leander K, Katsonouri A, Santos O, Virgolino A, Laguzzi F. Dietary Acrylamide Exposure and Risk of Site-Specific Cancer: A Systematic Review and Dose-Response Meta-Analysis of Epidemiological Studies. Front Nutr 2022; 9:875607. [PMID: 35548558 PMCID: PMC9082595 DOI: 10.3389/fnut.2022.875607] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/18/2022] [Indexed: 12/19/2022] Open
Abstract
Diet is a main source of acrylamide exposure to humans. Existing observational data on the relationship between dietary exposure to acrylamide and risk of cancer are inconsistent. We performed a systematic review and dose-response meta-analysis of epidemiological studies evaluating the association between dietary acrylamide exposure and several site-specific cancer. A systematic literature search was conducted in PubMed, Scopus, and Web of Science databases until March 7, 2022. Studies were eligible if they were carried out in non-occupationally exposed adults, assessed dietary acrylamide exposure (μg/day) and reported risk estimates of cancer incidence (all but gynecological cancers). Using a random-effects model, we performed a meta-analysis of site-specific cancer risk comparing the highest vs. lowest category of dietary acrylamide exposure. We also carried out a one-stage dose-response meta-analysis assessing the shape of the association. Out of 1,994 papers screened, 31 were eligible (total of 16 studies), which included 1,151,189 participants in total, out of whom 48,175 developed cancer during the median follow-up period of 14.9 years (range 7.3–33.9). The mean estimated dose of dietary acrylamide across studies was 23 μg/day. Pooled analysis showed no association between the highest vs. lowest dietary acrylamide exposure and each site-specific cancer investigated, with no evidence of thresholds in the dose-response meta-analysis. There were also no associations between dietary acrylamide exposure and the risk of cancers when stratifying by smoking status, except for increased risk of lung cancer in smokers. In conclusion, high dietary acrylamide exposure was not associated with an increased risk of site-specific non-gynecological cancer.
Collapse
Affiliation(s)
- Tommaso Filippini
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN)-Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Thorhallur I Halldorsson
- Department of Epidemiology Research, Centre for Fetal Programming, Copenhagen, Denmark.,Faculty of Food Science and Nutrition, University of Iceland, Reykjavík, Iceland
| | - Carolina Capitão
- EnviHeB Lab, Faculdade de Medicina, Instituto de Saúde Ambiental, Universidade de Lisboa, Lisbon, Portugal.,Laboratório Associado TERRA, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Raquel Martins
- EnviHeB Lab, Faculdade de Medicina, Instituto de Saúde Ambiental, Universidade de Lisboa, Lisbon, Portugal.,Laboratório Associado TERRA, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Konstantinos Giannakou
- State General Laboratory, Ministry of Health, Nicosia, Cyprus.,Department of Health Sciences, School of Sciences, European University Cyprus, Nicosia, Cyprus
| | - Janneke Hogervorst
- Centre for Environmental Sciences, Hasselt University, Diepenbeek, Belgium
| | - Marco Vinceti
- Environmental, Genetic and Nutritional Epidemiology Research Center (CREAGEN)-Section of Public Health, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Department of Epidemiology, Boston University School of Public Health, Boston, MA, United States
| | - Agneta Åkesson
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - Karin Leander
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | | | - Osvaldo Santos
- EnviHeB Lab, Faculdade de Medicina, Instituto de Saúde Ambiental, Universidade de Lisboa, Lisbon, Portugal.,Laboratório Associado TERRA, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal.,Unbreakable Idea Research, Cadaval, Portugal
| | - Ana Virgolino
- EnviHeB Lab, Faculdade de Medicina, Instituto de Saúde Ambiental, Universidade de Lisboa, Lisbon, Portugal.,Laboratório Associado TERRA, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Federica Laguzzi
- Unit of Cardiovascular and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| |
Collapse
|
20
|
Pietropaoli F, Pantalone S, Cichelli A, d'Alessandro N. Acrylamide in widely consumed foods - a review. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2022; 39:853-887. [PMID: 35286246 DOI: 10.1080/19440049.2022.2046292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Acrylamide (AA) is considered genotoxic, neurotoxic and a 'probable human carcinogen'. It is included in group 2 A of the International Agency for Research on Cancer (IARC). The formation of AA occurs when starch-based foods are subjected to temperatures higher than 120 °C in an atmosphere with very low water content. The aim of this review is to shed light on the toxicological aspects of AA, showing its regulatory evolution, and describing the most interesting mitigation techniques for each food category involved, with a focus on compliance with EU legislation in the various classes of consumer products of industrial origin in Europe.
Collapse
Affiliation(s)
- Francesca Pietropaoli
- Department of Innovative Technology in Medicine and Dentistry, University "G. d'Annunzio", Chieti, Italy
| | - Sara Pantalone
- Department of Engineering and Geology, University "G. d'Annunzio", Chieti, Italy
| | - Angelo Cichelli
- Department of Innovative Technology in Medicine and Dentistry, University "G. d'Annunzio", Chieti, Italy
| | - Nicola d'Alessandro
- Department of Engineering and Geology, University "G. d'Annunzio", Chieti, Italy
| |
Collapse
|
21
|
Benford D, Bignami M, Chipman JK, Ramos Bordajandi L. Assessment of the genotoxicity of acrylamide. EFSA J 2022; 20:e07293. [PMID: 35540797 PMCID: PMC9069548 DOI: 10.2903/j.efsa.2022.7293] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
EFSA was requested to deliver a statement on a recent publication revisiting the evidence for genotoxicity of acrylamide (AA). The statement was prepared by a Working Group and was endorsed by the CONTAM Panel before its final approval. In interpreting the Terms of Reference, the statement considered the modes of action underlying the carcinogenicity of AA including genotoxic and non‐genotoxic effects. Relevant publications since the 2015 CONTAM Panel Opinion on AA in food were reviewed. Several new studies reported positive results on the clastogenic and mutagenic properties of AA and its active metabolite glycidamide (GA). DNA adducts of GA were induced by AA exposure in experimental animals and have also been observed in humans. In addition to the genotoxicity of AA, there is evidence for both secondary DNA oxidation via generation of reactive oxygen species and for non‐genotoxic effects which may contribute to carcinogenesis by AA. These studies extend the information assessed by the CONTAM Panel in its 2015 Opinion, and support its conclusions. That Opinion applied the margin of exposure (MOE) approach, as recommended in the EFSA Guidance for substances that are both genotoxic and carcinogenic, for risk characterisation of the neoplastic effects of AA. Based on the new data evaluated, the MOE approach is still considered appropriate, and an update of the 2015 Opinion is not required at the present time.
Collapse
|
22
|
Harahap Y, Lahilla AA, Jautan AS, Hafidz A, Sunarsih S. Analysis of Acrylamide and Glycidamide in Dried Blood Spot of Smokers Using Ultra-High-Performance Liquid Chromatography–Tandem Mass Spectrometry. Drug Des Devel Ther 2022; 16:521-531. [PMID: 35250264 PMCID: PMC8896524 DOI: 10.2147/dddt.s346892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 01/26/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Yahdiana Harahap
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia
- Faculty of Military Pharmacy, Republic of Indonesia Defense University, Bogor, Indonesia
- Correspondence: Yahdiana Harahap, Email
| | | | | | - Amiral Hafidz
- Faculty of Pharmacy, Universitas Indonesia, Depok, Indonesia
| | | |
Collapse
|
23
|
Quesada-Valverde M, Artavia G, Granados-Chinchilla F, Cortés-Herrera C. Acrylamide in foods: from regulation and registered levels to chromatographic analysis, nutritional relevance, exposure, mitigation approaches, and health effects. TOXIN REV 2022. [DOI: 10.1080/15569543.2021.2018611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mónica Quesada-Valverde
- Centro Nacional de Ciencia y Tecnología de Alimentos (CITA), Universidad de Costa Rica, San José, Costa Rica
| | - Graciela Artavia
- Centro Nacional de Ciencia y Tecnología de Alimentos (CITA), Universidad de Costa Rica, San José, Costa Rica
| | - Fabio Granados-Chinchilla
- Centro Nacional de Ciencia y Tecnología de Alimentos (CITA), Universidad de Costa Rica, San José, Costa Rica
| | - Carolina Cortés-Herrera
- Centro Nacional de Ciencia y Tecnología de Alimentos (CITA), Universidad de Costa Rica, San José, Costa Rica
| |
Collapse
|
24
|
Smith MT, Kong D, Kuo A, Imam MZ, Williams CM. Analgesic Opioid Ligand Discovery Based on Nonmorphinan Scaffolds Derived from Natural Sources. J Med Chem 2022; 65:1612-1661. [PMID: 34995453 DOI: 10.1021/acs.jmedchem.0c01915] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Strong opioid analgesics, including morphine, are the mainstays for treating moderate to severe acute pain and alleviating chronic cancer pain. However, opioid-related adverse effects, including nausea or vomiting, sedation, respiratory depression, constipation, pruritus (itch), analgesic tolerance, and addiction and abuse liability, are problematic. In addition, the use of opioids to relieve chronic noncancer pain is controversial due to the "opioid crisis" characterized by opioid misuse or abuse and escalating unintentional death rates due to respiratory depression. Hence, considerable research internationally has been aimed at the "Holy Grail" of the opioid analgesic field, namely the discovery of novel and safer opioid analgesics with improved opioid-related adverse effects. In this Perspective, medicinal chemistry strategies are addressed, where structurally diverse nonmorphinan-based opioid ligands derived from natural sources were deployed as lead molecules. The current state of play, clinical or experimental status, and novel opioid ligand discovery approaches are elaborated in the context of retaining analgesia with improved safety and reduced adverse effects, especially addiction liability.
Collapse
|
25
|
Mori Y, Kobayashi H, Fujita Y, Yatagawa M, Kato S, Kawanishi S, Murata M, Oikawa S. Mechanism of reactive oxygen species generation and oxidative DNA damage induced by acrylohydroxamic acid, a putative metabolite of acrylamide. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2022; 873:503420. [PMID: 35094805 DOI: 10.1016/j.mrgentox.2021.503420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 10/20/2022]
Abstract
Acrylamide is formed during the heating of food and is also found in cigarette smoke. It is classified by the International Agency for Research on Cancer as a probable human carcinogen (Group 2A). Glycidamide, an epoxide metabolite of acrylamide, is implicated in the mechanism of acrylamide carcinogenicity. Acrylamide causes oxidative DNA damage in target organs. We sought to clarify the mechanism of acrylamide-induced oxidative DNA damage by investigating site-specific DNA damage and reactive oxygen species (ROS) generation by a putative metabolite of acrylamide, acrylohydroxamic acid (AA). Our results, using 32P-5'-end-labeled DNA fragments, indicated that, although AA alone did not damage DNA, AA treated with amidase induced DNA damage in the presence of Cu(II). DNA cleavage occurred preferentially at T and C, and particularly at T in 5'-TG-3' sequences, and the DNA cleavage pattern was similar to that of hydroxylamine. The DNA damage was inhibited by methional, catalase, and Cu(I)-chelator bathocuproine, suggesting that H2O2 and Cu(I) are involved in the mechanism of DNA damage induced by AA treated with amidase. In addition, amidase-treated AA increased 8-oxo-7,8-dihydro-2'-deoxyguanosine formation in calf thymus DNA, an indicator of oxidative DNA damage, in a dose-dependent manner. In conclusion, hydroxylamine, possibly produced from AA treated with amidase, was autoxidized via the Cu(II)/Cu(I) redox cycle and H2O2 generation, suggesting that oxidative DNA damage induced by ROS plays an important role in acrylamide-related carcinogenesis.
Collapse
Affiliation(s)
- Yurie Mori
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie, 514-8507, Japan; Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu, 509-0293, Japan
| | - Hatasu Kobayashi
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie, 514-8507, Japan
| | - Yoshio Fujita
- Faculty of Pharmaceutical Science, Suzuka University of Medical Science, 3500-3, Minamitamagaki, Suzuka, Mie, 513-8670, Japan
| | - Minami Yatagawa
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie, 514-8507, Japan
| | - Shinya Kato
- Radioisotope Experimental Facility, Advanced Science Research Promotion Center, Mie University, Edobashi 2-174, Tsu, Mie, 514-8507, Japan
| | - Shosuke Kawanishi
- Faculty of Pharmaceutical Science, Suzuka University of Medical Science, 3500-3, Minamitamagaki, Suzuka, Mie, 513-8670, Japan
| | - Mariko Murata
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie, 514-8507, Japan
| | - Shinji Oikawa
- Department of Environmental and Molecular Medicine, Mie University Graduate School of Medicine, Edobashi 2-174, Tsu, Mie, 514-8507, Japan.
| |
Collapse
|
26
|
Liu S, Ben X, Liang H, Fei Q, Guo X, Weng X, Wu Y, Wen L, Wang R, Chen J, Jing C. Association of acrylamide hemoglobin biomarkers with chronic obstructive pulmonary disease in the general population in the US: NHANES 2013-2016. Food Funct 2021; 12:12765-12773. [PMID: 34851334 DOI: 10.1039/d1fo02612g] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Background: Acrylamide is a well-known potential carcinogenic compound formed as an intermediate in the Maillard reaction during heat treatment, mainly from high-temperature frying, and is found in baked goods and coffee, as well as resulting from water treatment, textiles and paper processing. The effects of acrylamide on lung disease in humans remains unclear. We aimed to investigate the association between blood acrylamide and glycidamide and chronic obstructive pulmonary disease (COPD) in the United States of America (U.S.) population using PROC logistic regression models. Results: 2744 participants aged 20 to 80 from the 2013-2016 National Health and Nutrition Examination Survey (NHANES) were enrolled. After adjusting for demographic data, health factors and serum cotinine, the ratio of HbGA to HbAA (HbGA/HbAA) significantly increased the risk of COPD (P for trend = 0.022). The odds ratio (OR) with a 95% confidence interval (95% CI) for HbGA/HbAA in the third tile was 2.45 (1.12-5.31), compared with the lowest tile. The restricted cubic spline (RCS) curve showed a positive linear correlation between the log (HbGA/HbAA) and the risk of COPD (P = 0.030). Conclusion: The ratio of glycidamide and acrylamide (HbGA/HbAA) was associated with COPD. This association was more prominent in males, obese individuals, people with a poverty income ratio (PIR) < 1.85 or people who never exercise. However, null associations were observed between HbAA, HbGA and HbAA + HbGA, and COPD.
Collapse
Affiliation(s)
- Shan Liu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Xiaosong Ben
- Department of Thoracic Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Huanzhu Liang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Qiaoyuan Fei
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Xinrong Guo
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Xueqiong Weng
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Yingying Wu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Lin Wen
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Ruihua Wang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Jingmin Chen
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China.
| | - Chunxia Jing
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No. 601 Huangpu Ave West, Guangzhou 510632, Guangdong, China. .,Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou 510632, Guangdong, China
| |
Collapse
|
27
|
Komiya M, Ishigamori R, Naruse M, Ochiai M, Miyoshi N, Imai T, Totsuka Y. Establishment of Novel Genotoxicity Assay System Using Murine Normal Epithelial Tissue-Derived Organoids. Front Genet 2021; 12:768781. [PMID: 34868254 PMCID: PMC8638810 DOI: 10.3389/fgene.2021.768781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 10/26/2021] [Indexed: 11/13/2022] Open
Abstract
Short-/middle-term and simple prediction studies for carcinogenesis are needed for the safety assessment of chemical substances. To establish a novel genotoxicity assay with an in vivo mimicking system, we prepared murine colonic/pulmonary organoids from gpt delta mice according to the general procedure using collagenase/dispase and cultured them in a 3D environment. When the organoids were exposed to foodborne carcinogens—2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine (PhIP) and acrylamide (AA)—in the presence of metabolic activation systems, mutation frequencies (MFs) occurring in the gpt gene dose-dependently increased. Moreover, the mutation spectrum analysis indicated predominant G:C to T:A transversion with PhIP, and A:T to C:G and A:T to T:A transversion with AA. These data correspond to those of a previous study describing in vivo mutagenicity in gpt delta mice. However, organoids derived from the liver, a non-target tissue of PhIP-carcinogenesis, also demonstrated genotoxicity with a potency comparable to colonic organoids. Organoids and PhIP were directly incubated in the presence of metabolic activation systems; therefore, there was a lack of organ specificity, as observed in vivo. Additionally, PhIP-DNA adduct levels were comparable in hepatic and colonic organoids after PhIP exposure. Taken together, the organoids prepared in the present study may be helpful to predict chemical carcinogenesis.
Collapse
Affiliation(s)
- Masami Komiya
- Department of Cancer Model Development, National Cancer Center Research Institute, Tokyo, Japan
| | - Rikako Ishigamori
- Department of Animal Experimentation, National Cancer Center Research Institute, Tokyo, Japan
| | - Mie Naruse
- Department of Animal Experimentation, National Cancer Center Research Institute, Tokyo, Japan
| | - Masako Ochiai
- Food Environment Research Center, Graduate Division of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Noriyuki Miyoshi
- Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka, Japan
| | - Toshio Imai
- Department of Cancer Model Development, National Cancer Center Research Institute, Tokyo, Japan.,Department of Animal Experimentation, National Cancer Center Research Institute, Tokyo, Japan
| | - Yukari Totsuka
- Department of Cancer Model Development, National Cancer Center Research Institute, Tokyo, Japan.,Laboratory of Environmental Toxicology and Carcinogenesis, School of Pharmacy, Nihon University, Chiba, Japan
| |
Collapse
|
28
|
Barupal DK, Schubauer-Berigan MK, Korenjak M, Zavadil J, Guyton KZ. Prioritizing cancer hazard assessments for IARC Monographs using an integrated approach of database fusion and text mining. ENVIRONMENT INTERNATIONAL 2021; 156:106624. [PMID: 33984576 PMCID: PMC8380673 DOI: 10.1016/j.envint.2021.106624] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/22/2021] [Accepted: 04/30/2021] [Indexed: 05/14/2023]
Abstract
BACKGROUND Systematic evaluation of literature data on the cancer hazards of human exposures is an essential process underlying cancer prevention strategies. The scope and volume of evidence for suspected carcinogens can range from very few to thousands of publications, requiring a complex, systematically planned, and critical procedure to nominate, prioritize and evaluate carcinogenic agents. To aid in this process, database fusion, cheminformatics and text mining techniques can be combined into an integrated approach to inform agent prioritization, selection, and grouping. RESULTS We have applied these techniques to agents recommended for the IARC Monographs evaluations during 2020-2024. An integration of PubMed filters to cover cancer epidemiology, key characteristics of carcinogens, chemical lists from 34 databases relevant for cancer research, chemical structure grouping and a literature data-based clustering was applied in an innovative approach to 119 agents recommended by an advisory group for future IARC Monographs evaluations. The approach also facilitated a rational grouping of these agents and aids in understanding the volume and complexity of relevant information, as well as important gaps in coverage of the available studies on cancer etiology and carcinogenesis. CONCLUSION A new data-science approach has been applied to diverse agents recommended for cancer hazard assessments, and its applications for the IARC Monographs are demonstrated. The prioritization approach has been made available at www.cancer.idsl.me site for ranking cancer agents.
Collapse
Affiliation(s)
- Dinesh Kumar Barupal
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mt Sinai, NY, USA.
| | - Mary K Schubauer-Berigan
- Evidence Synthesis and Classification Branch, International Agency for Research on Cancer, Lyon, France
| | - Michael Korenjak
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer, Lyon, France
| | - Jiri Zavadil
- Epigenomics and Mechanisms Branch, International Agency for Research on Cancer, Lyon, France
| | - Kathryn Z Guyton
- Evidence Synthesis and Classification Branch, International Agency for Research on Cancer, Lyon, France
| |
Collapse
|
29
|
Bai Y, Gu Z, Zhang T, Luo Y, Zhang C, Luo L, Ma Y, Liu J. Toxic effects of subacute exposure to acrylamide on motor endplates of the gastrocnemius in rats. Toxicology 2021; 462:152934. [PMID: 34509579 DOI: 10.1016/j.tox.2021.152934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/30/2021] [Accepted: 09/07/2021] [Indexed: 11/17/2022]
Abstract
Acrylamide (ACR) is a recognized toxin that is known to induce neurotoxicity in humans and experimental animals. This study aimed to investigate the toxic effects of subacute exposure of the motor endplate (MEP) of the gastrocnemius in rats to ACR. All rats were randomly divided into control, 9, 18, and 36 mg/kg ACR groups, and ACR was administered by gastric gavage for 21 days. The behavioral tests were performed weekly. On the 22nd day, the wet weight of the gastrocnemius was measured. The changes in muscle fiber structure, nerve endings, and MEP in the gastrocnemius were examined by hematoxylin-eosin (HE) and gold chloride staining. Acetylcholinesterase (AChE) content in the gastrocnemius was detected by AChE staining. The expression of AChE and calcitonin gene-related peptide was detected by immunohistochemistry and western blot. Rats exposed to ACR showed a significant increase in gait scores and hind limb splay distance compared with the control group, and the wet weight of the gastrocnemius was reduced, HE staining showed that the muscle fiber structure of the gastrocnemius became thin and the arrangement was dense with nuclear aggregation, gold chloride staining showed that nerve branches decreased and became thin, nerve fibers became short and light, the number of MEPs was decreased, the staining became light, and the structure was not clear. AChE staining showed that the number of MEPs was significantly reduced after exposure to ACR, the shape became small, and the AChE content decreased in a dose-dependent manner. Immunohistochemistry and western blot analysis results of the expression levels of AChE and CGRP showed a decreasing trend as compared to the control group with increasing ACR exposure dose. The reduction in protein levels may be the mechanism by which ACR has a toxic effect on the MEP in the gastrocnemius of rats.
Collapse
Affiliation(s)
- Yanxian Bai
- Department of Basic Medicine, College of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Ziting Gu
- Guangdong Medical Academic Exchange Center, Guangzhou 510006, PR China
| | - Tong Zhang
- Department of Basic Medicine, College of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yuyou Luo
- Department of Basic Medicine, College of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Chunmei Zhang
- Department of Basic Medicine, College of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Li Luo
- Department of Basic Medicine, College of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Yuxin Ma
- Department of Basic Medicine, College of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, PR China
| | - Jing Liu
- Department of Basic Medicine, College of Life Sciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
| |
Collapse
|
30
|
Geospatial Assessments of DNA Adducts in the Human Stomach: A Model of Field Cancerization. Cancers (Basel) 2021; 13:cancers13153728. [PMID: 34359626 PMCID: PMC8345122 DOI: 10.3390/cancers13153728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Field cancerization is a popular concept regarding where cancer cells arise in a plane, such as the opened-up gastrointestinal mucosa. The geospatial distribution of DNA adducts, some of which are believed to initiate mutation, may be a clue to understanding the landscape of the preferred occurrence of gastric cancer in the human stomach, such that the occurrence is much more frequent in the lesser curvature than in the greater curvature. METHODS Seven DNA adducts, C5-methyl-2'-deoxycytidine, 2'-deoxyinosine, C5-hydroxymethyl-2'-deoxycytidine, N6-methyl-2'-deoxyadenosine, 1,N6-etheno-2'-deoxyadenosine, N6-hydroxymethyl-2'-deoxyadenosine, and C8-oxo-2'-deoxyguanosine, from different points and zones of the human stomach were semi quantitatively measured by liquid chromatography/tandem mass spectrometry. The differences in the quantity of these DNA adducts from the lesser and greater curvature, the upper, middle and lower third zones, the anterior and posterior wall of the stomach, and the mucosae distant from and near the tumor were compared to determine whether the location preference of cancer in the stomach could be explained by the distribution of these DNA adducts. Comparisons were conducted considering the tumor locations and operation methods. CONCLUSIONS Regarding the DNA adducts investigated, significant differences in quantities and locations in the whole stomach were not noted; thus, these DNA adducts do not explain the preferential occurrence of cancer in particular locations of the human stomach.
Collapse
|
31
|
Zhang X, Li Y, Wei X, Hou Y, Jia S, Li S, Zhao X. Metabolomics analysis of the effects of quercetin on hepatotoxicity induced by acrylamide exposure in rats. Free Radic Res 2021; 55:831-841. [PMID: 34238086 DOI: 10.1080/10715762.2021.1950705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Acrylamide (AA) widely exists in human diet, which makes the public inevitably exposed to AA in daily life. Thisstudy aimed to investigatethe effects of quercetin on AA-induced hepatotoxicity utilizing metabolomics technology. Sixty male Wistar Rats were randomly divided into six groups: control, two dosages of quercetinintervention[10 and 50 mg/kgbody weight (bw)], AA-treated [5 mg/kgbw], and two dosages of quercetin combined with AA intervention. AA and quercetin were given to rats via drinking water and gavage respectively. After 16 weeksoftreatment, liver samples were collected for metabolomics analysis. 16metabolites were finally identified, the intensities of glutathione and NADP were decreased (p < 0.01), whereas the intensities of taurodeoxycholic acid, glycocholic acid, cholic acid, sphingosine, sphingosine1-phosphate, stearidonyl carnitine, N-undecanoylglycine, cholesterol, 13,14-Dihydro-15-keto-PGE2, LysoPE (20:5), LysoPE (18:3), LysoPC (20:4), and PC (22:5) were increased (p < 0.01) in the AA-treated groupthan those in the control group. After high-dose quercetin (50 mg/kgbw) plus AA treated concurrently to rats, the contents of the above 16 metabolites were significantly restored. This research showed that 50 mg/kg quercetin can alleviate AA-induced hepatotoxicity by reducing oxidative stress and inflammatory injury and regulating lipid metabolism.
Collapse
Affiliation(s)
- Xia Zhang
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yaru Li
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xinchen Wei
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China
| | - Yali Hou
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China
| | - Siqi Jia
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China
| | - Siqi Li
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China
| | - Xiujuan Zhao
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, China
| |
Collapse
|
32
|
Oddy J, Alarcón-Reverte R, Wilkinson M, Ravet K, Raffan S, Minter A, Mead A, Elmore JS, de Almeida IM, Cryer NC, Halford NG, Pearce S. Reduced free asparagine in wheat grain resulting from a natural deletion of TaASN-B2: investigating and exploiting diversity in the asparagine synthetase gene family to improve wheat quality. BMC PLANT BIOLOGY 2021; 21:302. [PMID: 34187359 PMCID: PMC8240372 DOI: 10.1186/s12870-021-03058-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/17/2021] [Indexed: 05/31/2023]
Abstract
BACKGROUND Understanding the determinants of free asparagine concentration in wheat grain is necessary to reduce levels of the processing contaminant acrylamide in baked and toasted wheat products. Although crop management strategies can help reduce asparagine concentrations, breeders have limited options to select for genetic variation underlying this trait. Asparagine synthetase enzymes catalyse a critical step in asparagine biosynthesis in plants and, in wheat, are encoded by five homeologous gene triads that exhibit distinct expression profiles. Within this family, TaASN2 genes are highly expressed during grain development but TaASN-B2 is absent in some varieties. RESULTS Natural genetic diversity in the asparagine synthetase gene family was assessed in different wheat varieties revealing instances of presence/absence variation and other polymorphisms, including some predicted to affect the function of the encoded protein. The presence and absence of TaASN-B2 was determined across a range of UK and global common wheat varieties and related species, showing that the deletion encompassing this gene was already present in some wild emmer wheat genotypes. Expression profiling confirmed that TaASN2 transcripts were only detectable in the grain, while TaASN3.1 genes were highly expressed during the early stages of grain development. TaASN-A2 was the most highly expressed TaASN2 homeologue in most assayed wheat varieties. TaASN-B2 and TaASN-D2 were expressed at similar, lower levels in varieties possessing TaASN-B2. Expression of TaASN-A2 and TaASN-D2 did not increase to compensate for the absence of TaASN-B2, so total TaASN2 expression was lower in varieties lacking TaASN-B2. Consequently, free asparagine concentrations in field-produced grain were, on average, lower in varieties lacking TaASN-B2, although the effect was lost when free asparagine accumulated to very high concentrations as a result of sulphur deficiency. CONCLUSIONS Selecting wheat genotypes lacking the TaASN-B2 gene may be a simple and rapid way for breeders to reduce free asparagine concentrations in commercial wheat grain.
Collapse
Affiliation(s)
- Joseph Oddy
- Plant Sciences Department, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ UK
| | - Rocío Alarcón-Reverte
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523 USA
| | - Mark Wilkinson
- Plant Sciences Department, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ UK
| | - Karl Ravet
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523 USA
| | - Sarah Raffan
- Plant Sciences Department, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ UK
| | - Andrea Minter
- Computational and Analytical Sciences Department, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ UK
| | - Andrew Mead
- Computational and Analytical Sciences Department, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ UK
| | - J. Stephen Elmore
- Department of Food & Nutritional Sciences, University of Reading, Whiteknights, Reading, RG6 6DZ UK
| | | | - Nicholas C. Cryer
- Mondelēz UK R&D Ltd, Bournville Lane, Bournville, Birmingham, B30 2LU UK
| | - Nigel G. Halford
- Plant Sciences Department, Rothamsted Research, Harpenden, Hertfordshire, AL5 2JQ UK
| | - Stephen Pearce
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO 80523 USA
| |
Collapse
|
33
|
Powers SJ, Mottram DS, Curtis A, Halford NG. Progress on reducing acrylamide levels in potato crisps in Europe, 2002 to 2019. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:782-806. [PMID: 33735593 DOI: 10.1080/19440049.2020.1871083] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
European Snacks Association (ESA) data on acrylamide in potato crisps from 2002 to 2019 (99704 observations) were analysed. Acrylamide levels have plateaued since 2011, although the lowest mean so far was attained in 2018 at 353 ± 2.7 ng g-1: a 54% reduction since 2002. The 85th, 90th and 95th quantiles did show evidence of continued downward progress, the 90th quantile being lower than the 750 ng g-1 European Benchmark Level from 2017 to 2019. A smaller dataset from the European Food Safety Authority (2124 observations) for 2011-2018 was also analysed. The yearly means were higher than those of the ESA data but showed a fall in average acrylamide from 715 ± 40.5 ng g-1 in 2015 to 505 ± 28.5 ng g-1 in 2018, as well as steep falls in the 85th, 90th and 95th quantiles. Nevertheless, even the 85th quantile remained above the 750 ng g-1 Benchmark Level. The ESA data showed a reduction in the proportion of samples with acrylamide exceeding 750 ng g-1, from over 40% in 2002 to 7.75% in 2019. Seasonality was evident, with highest acrylamide levels from November to May. Crisp type had little effect except that thicker types had a higher proportion of samples containing >750 ng g-1 acrylamide. Analysis of the region of origin in Europe of the final product revealed improvements in the east and north. Geographical factors combined with seasonality continued to be problematic but was also an aspect in which progress was most evident. The findings show that improvements have been made in reducing the number of samples with very high levels of acrylamide, but do not suggest that mean acrylamide levels could be reduced substantially below where they have been since 2011, or that levels could be kept consistently below the current Benchmark Level.
Collapse
Affiliation(s)
| | - Donald S Mottram
- Department of Food and Nutritional Sciences, University of Reading, Whiteknights, Reading UK
| | | | - Nigel G Halford
- Plant Science Department, Rothamsted Research, Harpenden, Hertfordshire UK
| |
Collapse
|
34
|
Effect of sampling time on somatic and germ cell mutations induced by acrylamide in gpt delta mice. Genes Environ 2021; 43:4. [PMID: 33597036 PMCID: PMC7890838 DOI: 10.1186/s41021-021-00175-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/02/2021] [Indexed: 12/02/2022] Open
Abstract
Background Acrylamide (AA) is a rodent carcinogen and classified by the IARC into Group 2A (probable human carcinogen). AA has been reported to induce mutations in transgenic rodent gene mutation assays (TGR assays), the extent of which is presumed to depend on exposure length and the duration of expression after exposure. In particular, it is not clear in germ cells. To investigate mutagenicity with AA in somatic and germ cells at different sampling times, we conducted TGR assays using gpt delta transgenic mice. Results The male gpt delta mice at 8 weeks of age were treated with AA at 7.5, 15 and 30 mg/kg/day by gavage for 28 days. Peripheral blood was sampled on the last day of the treatment for micronucleus tests and tissues were sampled for gene mutation assays at day 31 and day 77, those being 3 and 49 days after the final treatment (28 + 3d and 28 + 49d), respectively. Another group of mice was treated with N-Ethyl-N-nitrosourea (ENU) at 50 mg/kg/day by intraperitoneal administration for 5 consecutive days and tissues were sampled at the day 31 and day 77 (5 + 26d and 5 + 72d). Frequencies of micronucleated erythrocytes in the peripheral blood significantly increased at AA doses of 15 and 30 mg/kg/day. Two- to three-fold increases in gpt mutation frequencies (MFs) compared to vehicle control were observed in the testes and lung treated with 30 mg/kg/day of AA at both sampling time. In the sperm, the gpt MFs and G:C to T:A transversions were significantly increased at 28 + 3d, but not at 28 + 49d. ENU induced gpt mutations in these tissues were examined at both 5 + 26d and 5 + 72d. A higher mutant frequency in the ENU-treated sperm was observed at 5 + 72d than that at 5 + 26d. Conclusions The gpt MFs in the testes, sperm and lung of the AA-treated mice were determined and compared between different sampling times (3 days or 49 days following 28 day-treatment). These results suggest that spermatogonial stem cells are less sensitive to AA mutagenicity under the experimental condition. Prolonged expression time after exposure to AA to detect mutagenicity may be effective in somatic cells but not in germ cells. Supplementary Information The online version contains supplementary material available at 10.1186/s41021-021-00175-5.
Collapse
|
35
|
Hölzl-Armstrong L, Moody S, Kucab JE, Zwart EP, Bellamri M, Luijten M, Turesky RJ, Stratton MR, Arlt VM, Phillips DH. Mutagenicity of 2-hydroxyamino-1-methyl-6-phenylimidazo[4,5-b]pyridine (N-OH-PhIP) in human TP53 knock-in (Hupki) mouse embryo fibroblasts. Food Chem Toxicol 2020; 147:111855. [PMID: 33189884 DOI: 10.1016/j.fct.2020.111855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 10/03/2020] [Accepted: 11/06/2020] [Indexed: 02/07/2023]
Abstract
2-Amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) is a possible human carcinogen formed in cooked fish and meat. PhIP is bioactivated by cytochrome P450 enzymes to form 2-hydroxyamino-1-methyl-6-phenylimidazo[4,5-b]pyridine (N-OH-PhIP), a genotoxic metabolite that reacts with DNA leading to the mutation-prone DNA adduct N-(deoxyguanosin-8-yl)-PhIP (dG-C8-PhIP). Here, we studied N-OH-PhIP-induced whole genome mutagenesis in human TP53 knock-in (Hupki) mouse embryo fibroblasts (HUFs) immortalised and subjected to whole genome sequencing (WGS). In addition, mutagenicity of N-OH-PhIP in TP53 and the lacZ reporter gene were assessed. TP53 mutant frequency in HUF cultures treated with N-OH-PhIP (2.5 μM for 24 h, n = 90) was 10% while no TP53 mutations were found in untreated controls (DMSO for 24 h, n = 6). All N-OH-PhIP-induced TP53 mutations occurred at G:C base pairs with G > T/C > A transversions accounting for 58% of them. TP53 mutations characteristic of those induced by N-OH-PhIP have been found in human tumours including breast and colorectal, which are cancer types that have been associated with PhIP exposure. LacZ mutant frequency increased 25-fold at 5 μM N-OH-PHIP and up to ~350 dG-C8-PhIP adducts/108 nucleosides were detected by ultra-performance liquid chromatography-electrospray ionisation multistage scan mass spectrometry (UPLC-ESI-MS3) at this concentration. In addition, a WGS mutational signature defined by G > T/C > A transversions was present in N-OH-PhIP-treated immortalised clones, which showed similarity to COSMIC SBS4, 18 and 29 signatures found in human tumours.
Collapse
Affiliation(s)
- Lisa Hölzl-Armstrong
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK
| | - Sarah Moody
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1SA, UK
| | - Jill E Kucab
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK
| | - Edwin P Zwart
- Center for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, 3720 BA, the Netherlands
| | - Medjda Bellamri
- Masonic Cancer Center and Department of Medicinal Chemistry, University of Minnesota, Minneapolis, USA
| | - Mirjam Luijten
- Center for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, 3720 BA, the Netherlands
| | - Robert J Turesky
- Masonic Cancer Center and Department of Medicinal Chemistry, University of Minnesota, Minneapolis, USA
| | - Michael R Stratton
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1SA, UK
| | - Volker M Arlt
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK.
| | - David H Phillips
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK
| |
Collapse
|
36
|
Soares E, Shumbe L, Dauchot N, Notté C, Prouin C, Maudoux O, Vanderschuren H. Asparagine accumulation in chicory storage roots is controlled by translocation and feedback regulation of asparagine biosynthesis in leaves. THE NEW PHYTOLOGIST 2020; 228:922-931. [PMID: 32729968 DOI: 10.1111/nph.16764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
The presence of acrylamide (AA), a potentially carcinogenic and neurotoxic compound, in food has become a major concern for public health. AA in plant-derived food mainly arises from the reaction of the amino acid asparagine (Asn) and reducing sugars during processing of foodstuffs at high temperature. Using a selection of genotypes from the chicory (Cichorium intybus L.) germplasm, we performed Asn measurements in storage roots and leaves to identify genotypes contrasting for Asn accumulation. We combined molecular analysis and grafting experiments to show that leaf to root translocation controls Asn biosynthesis and accumulation in chicory storage roots. We could demonstrate that Asn accumulation in storage roots depends on Asn biosynthesis and transport from the leaf, and that a negative feedback loop by Asn on CiASN1 expression impacts Asn biosynthesis in leaves. Our results provide a new model for Asn biosynthesis in root crop species and highlight the importance of characterizing and manipulating Asn transport to reduce AA content in processed plant-based foodstuffs.
Collapse
Affiliation(s)
- Emanoella Soares
- Plant Genetics Laboratory, TERRA Teaching and Research Center, University of Liège, Gembloux, 5030, Belgium
| | - Leonard Shumbe
- Plant Genetics Laboratory, TERRA Teaching and Research Center, University of Liège, Gembloux, 5030, Belgium
| | - Nicolas Dauchot
- Research Unit in Plant Cellular and Molecular Biology, University of Namur, Namur, 5000, Belgium
| | - Christine Notté
- Chicoline, Breeding Division of Cosucra Groupe Warcoing SA, Warcoing, 7740, Belgium
| | - Claire Prouin
- Chicoline, Breeding Division of Cosucra Groupe Warcoing SA, Warcoing, 7740, Belgium
| | - Olivier Maudoux
- Chicoline, Breeding Division of Cosucra Groupe Warcoing SA, Warcoing, 7740, Belgium
| | - Hervé Vanderschuren
- Plant Genetics Laboratory, TERRA Teaching and Research Center, University of Liège, Gembloux, 5030, Belgium
- Tropical Crop Improvement Laboratory, Crop Biotechnics Division, Biosystems Department, KU Leuven, Leuven, 3001, Belgium
| |
Collapse
|
37
|
Hölzl-Armstrong L, Kucab JE, Moody S, Zwart EP, Loutkotová L, Duffy V, Luijten M, Gamboa da Costa G, Stratton MR, Phillips DH, Arlt VM. Mutagenicity of acrylamide and glycidamide in human TP53 knock-in (Hupki) mouse embryo fibroblasts. Arch Toxicol 2020; 94:4173-4196. [PMID: 32886187 PMCID: PMC7655573 DOI: 10.1007/s00204-020-02878-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/12/2020] [Indexed: 11/30/2022]
Abstract
Acrylamide is a suspected human carcinogen formed during high-temperature cooking of starch-rich foods. It is metabolised by cytochrome P450 2E1 to its reactive metabolite glycidamide, which forms pre-mutagenic DNA adducts. Using the human TP53 knock-in (Hupki) mouse embryo fibroblasts (HUFs) immortalisation assay (HIMA), acrylamide- and glycidamide-induced mutagenesis was studied in the tumour suppressor gene TP53. Selected immortalised HUF clones were also subjected to next-generation sequencing to determine mutations across the whole genome. The TP53-mutant frequency after glycidamide exposure (1.1 mM for 24 h, n = 198) was 9% compared with 0% in cultures treated with acrylamide [1.5 (n = 24) or 3 mM (n = 6) for 48 h] and untreated vehicle (water) controls (n = 36). Most glycidamide-induced mutations occurred at adenines with A > T/T > A and A > G/T > C mutations being the most common types. Mutations induced by glycidamide occurred at specific TP53 codons that have also been found to be mutated in human tumours (i.e., breast, ovary, colorectal, and lung) previously associated with acrylamide exposure. The spectrum of TP53 mutations was further reflected by the mutations detected by whole-genome sequencing (WGS) and a distinct WGS mutational signature was found in HUF clones treated with glycidamide that was again characterised by A > G/T > C and A > T/T > A mutations. The WGS mutational signature showed similarities with COSMIC mutational signatures SBS3 and 25 previously found in human tumours (e.g., breast and ovary), while the adenine component was similar to COSMIC SBS4 found mostly in smokers’ lung cancer. In contrast, in acrylamide-treated HUF clones, only culture-related background WGS mutational signatures were observed. In summary, the results of the present study suggest that glycidamide may be involved in the development of breast, ovarian, and lung cancer.
Collapse
Affiliation(s)
- Lisa Hölzl-Armstrong
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK
| | - Jill E Kucab
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK
| | - Sarah Moody
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1SA, UK
| | - Edwin P Zwart
- Center for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, 3720, The Netherlands
| | - Lucie Loutkotová
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, 72079, USA.,Covance Inc., Salt Lake City, Utah, 84124, USA
| | - Veronica Duffy
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK
| | - Mirjam Luijten
- Center for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, 3720, The Netherlands
| | - Gonçalo Gamboa da Costa
- Division of Biochemical Toxicology, National Center for Toxicological Research, U.S. Food and Drug Administration, Jefferson, AR, 72079, USA
| | - Michael R Stratton
- Cancer, Ageing and Somatic Mutation, Wellcome Trust Sanger Institute, Hinxton, CB10 1SA, UK
| | - David H Phillips
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK
| | - Volker M Arlt
- Department of Analytical, Environmental and Forensic Sciences, MRC-PHE Centre for Environment and Health, King's College London, London, SE1 9NH, UK. .,Toxicology Department, GAB Consulting GmbH, 69126, Heidelberg, Germany.
| |
Collapse
|
38
|
Revisiting the evidence for genotoxicity of acrylamide (AA), key to risk assessment of dietary AA exposure. Arch Toxicol 2020; 94:2939-2950. [PMID: 32494932 PMCID: PMC7415744 DOI: 10.1007/s00204-020-02794-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 05/20/2020] [Indexed: 12/16/2022]
Abstract
The weight of evidence pro/contra classifying the process-related food contaminant (PRC) acrylamide (AA) as a genotoxic carcinogen is reviewed. Current dietary AA exposure estimates reflect margins of exposure (MOEs) < 500. Several arguments support the view that AA may not act as a genotoxic carcinogen, especially not at consumer-relevant exposure levels: Biotransformation of AA into genotoxic glycidamide (GA) in primary rat hepatocytes is markedly slower than detoxifying coupling to glutathione (GS). Repeated feeding of rats with AA containing foods, bringing about uptake of 100 µg/kg/day of AA, resulted in dose x time-related buildup of AA-hemoglobin (Hb) adducts, whereas GA-Hb adducts remained within the background. Since hepatic oxidative biotransformation of AA into GA was proven by simultaneous urinary mercapturic acid monitoring it can be concluded that at this nutritional intake level any GA formed in the liver from AA is quantitatively coupled to GS to be excreted as mercapturic acid in urine. In an oral single dose–response study in rats, AA induced DNA N7-GA-Gua adducts dose-dependently in the high dose range (> 100 µg/kg b w). At variance, in the dose range below 100 µg/kg b.w. down to levels of average consumers exposure, DNA N7 -Gua lesions were found only sporadically, without dose dependence, and at levels close to the lower bound of similar human background DNA N7-Gua lesions. No DNA damage was detected by the comet assay within this low dose range. GA is a very weak mutagen, known to predominantly induce DNA N7-GA-Gua adducts, especially in the lower dose range. There is consensus that DNA N7-GA-Gua adducts exhibit rather low mutagenic potency. The low mutagenic potential of GA has further been evidenced by comparison to preactivated forms of other process-related contaminants, such as N-Nitroso compounds or polycyclic aromatic hydrocarbons, potent food borne mutagens/carcinogens. Toxicogenomic studies provide no evidence supporting a genotoxic mode of action (MOA), rather indicate effects on calcium signalling and cytoskeletal functions in rodent target organs. Rodent carcinogenicity studies show induction of strain- and species-specific neoplasms, with MOAs not considered likely predictive for human cancer risk. In summary, the overall evidence clearly argues for a nongenotoxic/nonmutagenic MOA underlying the neoplastic effects of AA in rodents. In consequence, a tolerable intake level (TDI) may be defined, guided by mechanistic elucidation of key adverse effects and supported by biomarker-based dosimetry in experimental systems and humans.
Collapse
|
39
|
Ou J, Zheng J, Huang J, Ho CT, Ou S. Interaction of Acrylamide, Acrolein, and 5-Hydroxymethylfurfural with Amino Acids and DNA. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:5039-5048. [PMID: 32275416 DOI: 10.1021/acs.jafc.0c01345] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Acrylamide, acrolein, and 5-hydroxymethylfurfural (HMF) are food-borne toxicants produced during the thermal processing of food. The α,β-unsaturated carbonyl group or aldehyde group in their structure can react easily with the amino, imino, and thiol groups in amino acids, proteins, and DNA via Michael addition and nucleophilic reactions in food and in vivo. This work reviews the interaction pathways of three toxins with amino acids and the cytotoxicity and changes after the digestion and absorption of the resulting adducts. Their interaction with DNA is also discussed. Amino acids ubiquitously exist in foods and are added as nutrients or used to control these food-borne toxicants. Hence, the interaction widely occurring in foods would greatly increase the internal exposure of these toxins and their derived compounds after food intake. This review aims to encourage further investigation on toxin-derived compounds, including their types, exposure levels, toxicities, and pharmacokinetics.
Collapse
Affiliation(s)
- Juanying Ou
- Institute of Food Safety & Nutrition, Jinan University, Guangzhou, Guangdong 510632, China
| | - Jie Zheng
- Department of Food and Engineering, Jinan University, Guangzhou, Guangdong 510632, China
| | - Junqing Huang
- Formula-pattern Research Center, College of Traditional Chinese Medicine, Jinan University, Guangzhou, Guangdong 510632, China
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, New Jersey 08901, United States
| | - Shiyi Ou
- Department of Food and Engineering, Jinan University, Guangzhou, Guangdong 510632, China
| |
Collapse
|
40
|
Melki PN, Korenjak M, Zavadil J. Experimental investigations of carcinogen-induced mutation spectra: Innovation, challenges and future directions. MUTATION RESEARCH. GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2020; 853:503195. [PMID: 32522347 DOI: 10.1016/j.mrgentox.2020.503195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/30/2020] [Accepted: 04/02/2020] [Indexed: 11/18/2022]
Abstract
Recent years have witnessed an expansion of mutagenesis research focusing on experimentally modeled genome-scale mutational signatures of carcinogens and of endogenous processes. Experimental mutational signatures can explain etiologic links to patterns found in human tumors that may be linked to same exposures, and can serve as biomarkers of exposure history and may even provide insights on causality. A number of innovative exposure models have been employed and reported, based on cells cultured in monolayers or in 3-D, on organoids, induced pluripotent stem cells, non-mammalian organisms, microorganisms and rodent bioassays. Here we discuss some of the latest developments and pros and cons of these experimental systems used in mutational signature analysis. Integrative designs that bring together multiple exposure systems (in vitro, in vivo and in silico pan-cancer data mining) started emerging as powerful tools to identify robust mutational signatures of the tested cancer risk agents. We further propose that devising a new generation of cell-based models is warranted to streamline systematic testing of carcinogen effects on the cell genomes, while seeking to increasingly supplant animal with non-animal systems to address relevant ethical issues and accentuate the 3R principles. We conclude that the knowledge accumulating from the growing body of signature modelling investigations has considerable power to advance cancer etiology studies and to support cancer prevention efforts through streamlined characterization of cancer-causing agents and the recognition of their specific effects.
Collapse
Affiliation(s)
- Pamela N Melki
- Molecular Mechanisms and Biomarkers Group, International Agency for Research on Cancer, World Health Organization, 69008 Lyon, France
| | - Michael Korenjak
- Molecular Mechanisms and Biomarkers Group, International Agency for Research on Cancer, World Health Organization, 69008 Lyon, France
| | - Jiri Zavadil
- Molecular Mechanisms and Biomarkers Group, International Agency for Research on Cancer, World Health Organization, 69008 Lyon, France.
| |
Collapse
|
41
|
Ahmed SB, Amer S, Hussein A, D. Kampani D, Al Hasham N, M. Assker M, Shawa N, Saleh D, Alfarouk KO. Assessing the Knowledge of Environmental Risk Factors for Cancer among the UAE Population: A Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17092984. [PMID: 32344867 PMCID: PMC7246594 DOI: 10.3390/ijerph17092984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 01/22/2023]
Abstract
The incidence of cancer is increasing worldwide as well as in the United Arab Emirates (UAE). Currently, researchers are advocating not only for prevention programs but also for early detection. In this study, we aimed to assess the general awareness of cancer among the UAE population, with a focus on environmental risk factors. A descriptive cross-sectional design was employed, and a structured questionnaire was used to collect data from 385 participants. A total of 91.2% of the study population identified cancer as the leading cause of death, while 64.6% of the subjects were able to identify the key causes of cancer. A total of 87.3% and 70.5% of the participants were able to define tobacco and alcohol, respectively, as cancer-causing agents. Most of the study population failed to identify cancer-related infectious agents and incense smoke as carcinogens. Respondents in the medical professions had the highest knowledge score when compared with respondents with a non-medical profession and unemployed participants (p < 0.0005). To fill the gaps in cancer-related knowledge, participants were asked about their preferred method for cancer education, and 83.9% of the participants favored the media as a source of information. Conclusively, our findings indicated a gap in cancer knowledge among UAE residents, which highlights the importance of educational campaigns by health authorities; a follow-up study evaluating the success of educational campaigns is also warranted.
Collapse
Affiliation(s)
- Samrein B.M. Ahmed
- College of medicine, University of Sharjah, Sharjah 27272, UAE; (S.A.); (A.H.); (D.D.K.); (N.A.H.); (M.M.A.); (D.S.)
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, UAE;
- Correspondence:
| | - Sara Amer
- College of medicine, University of Sharjah, Sharjah 27272, UAE; (S.A.); (A.H.); (D.D.K.); (N.A.H.); (M.M.A.); (D.S.)
| | - Amal Hussein
- College of medicine, University of Sharjah, Sharjah 27272, UAE; (S.A.); (A.H.); (D.D.K.); (N.A.H.); (M.M.A.); (D.S.)
| | - Drishti D. Kampani
- College of medicine, University of Sharjah, Sharjah 27272, UAE; (S.A.); (A.H.); (D.D.K.); (N.A.H.); (M.M.A.); (D.S.)
| | - Nour Al Hasham
- College of medicine, University of Sharjah, Sharjah 27272, UAE; (S.A.); (A.H.); (D.D.K.); (N.A.H.); (M.M.A.); (D.S.)
| | - Mohamed M. Assker
- College of medicine, University of Sharjah, Sharjah 27272, UAE; (S.A.); (A.H.); (D.D.K.); (N.A.H.); (M.M.A.); (D.S.)
| | - Nour Shawa
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, UAE;
| | - Dima Saleh
- College of medicine, University of Sharjah, Sharjah 27272, UAE; (S.A.); (A.H.); (D.D.K.); (N.A.H.); (M.M.A.); (D.S.)
| | | |
Collapse
|
42
|
David R. The promise of toxicogenomics for genetic toxicology: past, present and future. Mutagenesis 2020; 35:153-159. [PMID: 32087008 DOI: 10.1093/mutage/geaa007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 02/10/2020] [Indexed: 01/10/2023] Open
Abstract
Toxicogenomics, the application of genomics to toxicology, was described as 'a new era' for toxicology. Standard toxicity tests typically involve a number of short-term bioassays that are costly, time consuming, require large numbers of animals and generally focus on a single end point. Toxicogenomics was heralded as a way to improve the efficiency of toxicity testing by assessing gene regulation across the genome, allowing rapid classification of compounds based on characteristic expression profiles. Gene expression microarrays could measure and characterise genome-wide gene expression changes in a single study and while transcriptomic profiles that can discriminate between genotoxic and non-genotoxic carcinogens have been identified, challenges with the approach limited its application. As such, toxicogenomics did not transform the field of genetic toxicology in the way it was predicted. More recently, next generation sequencing (NGS) technologies have revolutionised genomics owing to the fact that hundreds of billions of base pairs can be sequenced simultaneously cheaper and quicker than traditional Sanger methods. In relation to genetic toxicology, and thousands of cancer genomes have been sequenced with single-base substitution mutational signatures identified, and mutation signatures have been identified following treatment of cells with known or suspected environmental carcinogens. RNAseq has been applied to detect transcriptional changes following treatment with genotoxins; modified RNAseq protocols have been developed to identify adducts in the genome and Duplex sequencing is an example of a technique that has recently been developed to accurately detect mutation. Machine learning, including MutationSeq and SomaticSeq, has also been applied to somatic mutation detection and improvements in automation and/or the application of machine learning algorithms may allow high-throughput mutation sequencing in the future. This review will discuss the initial promise of transcriptomics for genetic toxicology, and how the development of NGS technologies and new machine learning algorithms may finally realise that promise.
Collapse
Affiliation(s)
- Rhiannon David
- Clinical Pharmacology and Safety Sciences, R&D, AstraZeneca, Cambridge, UK
| |
Collapse
|
43
|
Key TJ, Bradbury KE, Perez-Cornago A, Sinha R, Tsilidis KK, Tsugane S. Diet, nutrition, and cancer risk: what do we know and what is the way forward? BMJ 2020; 368:m511. [PMID: 32139373 PMCID: PMC7190379 DOI: 10.1136/bmj.m511] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Timothy J Key
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Kathryn E Bradbury
- National Institute for Health Innovation, School of Population Health, University of Auckland, Auckland, New Zealand
| | - Aurora Perez-Cornago
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Rashmi Sinha
- Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Konstantinos K Tsilidis
- Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK
| | - Shoichiro Tsugane
- Center for Public Health Sciences, National Cancer Center, Tokyo, Japan
| |
Collapse
|
44
|
Zhao LG, Li ZY, Feng GS, Ji XW, Tan YT, Li HL, Gunter MJ, Xiang YB. Coffee drinking and cancer risk: an umbrella review of meta-analyses of observational studies. BMC Cancer 2020; 20:101. [PMID: 32024485 PMCID: PMC7003434 DOI: 10.1186/s12885-020-6561-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 01/20/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Epidemiological studies on the association between coffee intake and cancer risk have yielded inconsistent results. To summarize and appraise the quality of the current evidence, we conducted an umbrella review of existing findings from meta-analyses of observational studies. METHODS We searched PubMed, Embase, Web of Science and the Cochrane database to obtain systematic reviews and meta-analyses of associations between coffee intake and cancer incidence. For each association, we estimated the summary effect size using the fixed- and random-effects model, the 95% confidence interval, and the 95% prediction interval. We also assessed heterogeneity, evidence of small-study effects, and excess significance bias. RESULTS Twenty-eight individual meta-analyses including 36 summary associations for 26 cancer sites were retrieved for this umbrella review. A total of 17 meta-analyses were significant at P ≤ 0.05 in the random-effects model. For the highest versus lowest categories, 4 of 26 associations had a more stringent P value (P ≤ 10- 6). Associations for five cancers were significant in dose-response analyses. Most studies (69%) showed low heterogeneity (I2 ≤ 50%). Three and six associations had evidence of excessive significance bias and publication bias, respectively. Coffee intake was inversely related to the risk of liver cancer and endometrial cancer and was characterized by dose-response relationships. There were no substantial changes when we restricted analyses to meta-analysis of cohort studies. CONCLUSIONS There is highly suggestive evidence for an inverse association between coffee intake and risk of liver and endometrial cancer. Further research is needed to provide more robust evidence for cancer at other sites.
Collapse
Affiliation(s)
- Long-Gang Zhao
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhuo-Ying Li
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Guo-Shan Feng
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiao-Wei Ji
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yu-Ting Tan
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hong-Lan Li
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Marc J Gunter
- Section of Nutrition and Metabolism, International Agency for Research on Cancer, 150, cours Albert Thomas F-69372, Cedex 08, Lyon, France
| | - Yong-Bing Xiang
- State Key Laboratory of Oncogene and Related Genes & Department of Epidemiology, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| |
Collapse
|
45
|
Alexandrov LB, Kim J, Haradhvala NJ, Huang MN, Tian Ng AW, Wu Y, Boot A, Covington KR, Gordenin DA, Bergstrom EN, Islam SMA, Lopez-Bigas N, Klimczak LJ, McPherson JR, Morganella S, Sabarinathan R, Wheeler DA, Mustonen V, Getz G, Rozen SG, Stratton MR. The repertoire of mutational signatures in human cancer. Nature 2020; 578:94-101. [PMID: 32025018 PMCID: PMC7054213 DOI: 10.1038/s41586-020-1943-3] [Citation(s) in RCA: 1798] [Impact Index Per Article: 449.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 11/18/2019] [Indexed: 01/27/2023]
Abstract
Somatic mutations in cancer genomes are caused by multiple mutational processes, each of which generates a characteristic mutational signature1. Here, as part of the Pan-Cancer Analysis of Whole Genomes (PCAWG) Consortium2 of the International Cancer Genome Consortium (ICGC) and The Cancer Genome Atlas (TCGA), we characterized mutational signatures using 84,729,690 somatic mutations from 4,645 whole-genome and 19,184 exome sequences that encompass most types of cancer. We identified 49 single-base-substitution, 11 doublet-base-substitution, 4 clustered-base-substitution and 17 small insertion-and-deletion signatures. The substantial size of our dataset, compared with previous analyses3-15, enabled the discovery of new signatures, the separation of overlapping signatures and the decomposition of signatures into components that may represent associated-but distinct-DNA damage, repair and/or replication mechanisms. By estimating the contribution of each signature to the mutational catalogues of individual cancer genomes, we revealed associations of signatures to exogenous or endogenous exposures, as well as to defective DNA-maintenance processes. However, many signatures are of unknown cause. This analysis provides a systematic perspective on the repertoire of mutational processes that contribute to the development of human cancer.
Collapse
Affiliation(s)
- Ludmil B. Alexandrov
- 0000 0001 2107 4242grid.266100.3Department of Cellular and Molecular Medicine, Department of Bioengineering, Moores Cancer Center, University of California, San Diego, CA USA
| | - Jaegil Kim
- grid.66859.34Broad Institute of MIT and Harvard, Cambridge, MA USA
| | - Nicholas J. Haradhvala
- grid.66859.34Broad Institute of MIT and Harvard, Cambridge, MA USA ,0000 0004 0386 9924grid.32224.35Center for Cancer Research, Massachusetts General Hospital, Boston, MA USA
| | - Mi Ni Huang
- 0000 0004 0385 0924grid.428397.3Programme in Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore ,0000 0004 0385 0924grid.428397.3Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Alvin Wei Tian Ng
- 0000 0004 0385 0924grid.428397.3Programme in Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore ,0000 0004 0385 0924grid.428397.3Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Yang Wu
- 0000 0004 0385 0924grid.428397.3Programme in Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore ,0000 0004 0385 0924grid.428397.3Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Arnoud Boot
- 0000 0004 0385 0924grid.428397.3Programme in Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore ,0000 0004 0385 0924grid.428397.3Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Kyle R. Covington
- 0000 0001 2160 926Xgrid.39382.33Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX USA ,0000 0001 2160 926Xgrid.39382.33Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX USA
| | - Dmitry A. Gordenin
- 0000 0001 2110 5790grid.280664.eGenome Integrity and Structural Biology Laboratory, National Institute of Environmental Health Sciences (NIEHS), Durham, NC USA
| | - Erik N. Bergstrom
- 0000 0001 2107 4242grid.266100.3Department of Cellular and Molecular Medicine, Department of Bioengineering, Moores Cancer Center, University of California, San Diego, CA USA
| | - S. M. Ashiqul Islam
- 0000 0001 2107 4242grid.266100.3Department of Cellular and Molecular Medicine, Department of Bioengineering, Moores Cancer Center, University of California, San Diego, CA USA
| | - Nuria Lopez-Bigas
- grid.473715.3Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Barcelona, Spain ,0000 0001 2172 2676grid.5612.0Research Program on Biomedical Informatics, Universitat Pompeu Fabra, Barcelona, Spain ,0000 0000 9601 989Xgrid.425902.8Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Leszek J. Klimczak
- 0000 0001 2110 5790grid.280664.eIntegrative Bioinformatics Support Group, National Institute of Environmental Health Sciences (NIEHS), Durham, NC USA
| | - John R. McPherson
- 0000 0004 0385 0924grid.428397.3Programme in Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore ,0000 0004 0385 0924grid.428397.3Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Sandro Morganella
- 0000 0004 0606 5382grid.10306.34Wellcome Sanger Institute, Hinxton, UK
| | - Radhakrishnan Sabarinathan
- 0000 0001 2172 2676grid.5612.0Research Program on Biomedical Informatics, Universitat Pompeu Fabra, Barcelona, Spain ,0000 0004 0502 9283grid.22401.35National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, India ,0000 0001 1811 6966grid.7722.0Institute for Research in Biomedicine (IRB Barcelona), Barcelona, Spain
| | - David A. Wheeler
- 0000 0001 2160 926Xgrid.39382.33Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX USA ,0000 0001 2160 926Xgrid.39382.33Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX USA
| | - Ville Mustonen
- 0000 0004 0410 2071grid.7737.4Department of Computer Science, University of Helsinki, Helsinki, Finland ,0000 0004 0410 2071grid.7737.4Organismal and Evolutionary Biology Research Programme, University of Helsinki, Helsinki, Finland ,0000 0004 0410 2071grid.7737.4Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | | | - Gad Getz
- grid.66859.34Broad Institute of MIT and Harvard, Cambridge, MA USA ,0000 0004 0386 9924grid.32224.35Center for Cancer Research, Massachusetts General Hospital, Boston, MA USA ,0000 0004 0386 9924grid.32224.35Department of Pathology, Massachusetts General Hospital, Boston, MA USA ,000000041936754Xgrid.38142.3cHarvard Medical School, Boston, MA USA
| | - Steven G. Rozen
- 0000 0004 0385 0924grid.428397.3Programme in Cancer & Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore ,0000 0004 0385 0924grid.428397.3Centre for Computational Biology, Duke-NUS Medical School, Singapore, Singapore ,0000 0004 0620 9905grid.419385.2SingHealth, Duke-NUS Institute of Precision Medicine, National Heart Centre Singapore, Singapore, Singapore
| | | | | |
Collapse
|
46
|
Nevalainen H. Strategies and Challenges for the Development of Industrial Enzymes Using Fungal Cell Factories. GRAND CHALLENGES IN FUNGAL BIOTECHNOLOGY 2020. [PMCID: PMC7123961 DOI: 10.1007/978-3-030-29541-7_7] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Industrial enzymes have been produced from microorganisms for more than a century. Today, a large share of enzyme products is manufactured using recombinant microorganisms. This chapter focuses on major industrial fungal species belonging to the ascomycetes like Aspergillus niger, A. oryzae, and Trichoderma reesei. Many of the commercially available recombinant enzymes are manufactured using fungi. Examples of fungal enzymes used in food products are described. The enzyme industry is to a large extent cost-driven, so the enzyme product needs to meet strict COGS (cost of goods sold) targets. Therefore, the cell factory must be very efficient to produce the enzyme in high titers and efficiently utilize raw materials. Secondly, it must be designed for a robust and generic fermentation process. When developing fungal hosts for enzyme production, several properties of the system need to be considered relating to efficiency of the cell factory, purity of the product, and safety of both the cell factory and the product. Purity is secured by engineering of the cell factory, and properties related to safety must also be engineered into the fungal host. The methods used for strain improvement are continuously being developed to increase yields and are described herein. More automation using precision tools for modification of the genome (i.e., CRISPR) and low-cost sequencing have vastly expanded the possibilities and enabled fast strain development. Using systems biology approaches, better understanding of cellular processes is now possible enabling advanced engineering of fungal cell factories. Surprisingly, a survey of innovation in the field revealed a decrease in the number of patent applications in recent years. Finally, the requirements for enzyme approval, especially in food and feed, have increased significantly worldwide in the last few years. A description of the regulatory landscape and its challenges in food and feed is included.
Collapse
Affiliation(s)
- Helena Nevalainen
- Department of Molecular Sciences, Macquarie University, Sydney, NSW Australia
| |
Collapse
|
47
|
Hölzl-Armstrong L, Kucab JE, Korenjak M, Luijten M, Phillips DH, Zavadil J, Arlt VM. Characterising Mutational Spectra of Carcinogens in the Tumour Suppressor Gene TP53 Using Human TP53 Knock-in (Hupki) Mouse Embryo Fibroblasts. Methods Protoc 2019; 2:E85. [PMID: 31766274 PMCID: PMC6961128 DOI: 10.3390/mps2040085] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/30/2019] [Accepted: 10/31/2019] [Indexed: 12/11/2022] Open
Abstract
DNA in dividing cells is prone to mutagenesis, with mutations making key contributions to human disease including cancer. The tumour suppressor gene TP53 is the most frequently mutated gene in human tumours. Here, we present a robust protocol for studying TP53 mutagenesis utilising human TP53 knock-in (Hupki) mouse embryonic fibroblasts (HUFs). In the HUF immortalisation assay (HIMA), primary HUFs are treated with known or suspected carcinogens at 3% oxygen and then transferred to 20% atmospheric oxygen to induce senescence. Cells containing mutations (e.g., in TP53) that allow bypassing of senescence eventually emerge as immortalised clonal cell lines after 2-3 months of serial passaging. As not all immortalised HUF cells contain TP53 mutations, we developed a Nutlin-3a counter-screen to select for TP53-mutated clones prior to sequencing. TP53 mutation spectra generated can be compared with those of human tumours recorded in the International Agency for Research on Cancer TP53 mutation database. Environmental mutagens that have demonstrated and validated the utility of the HIMA include ultraviolet radiation, aristolochic acid, and benzo[a]pyrene. The TP53 mutation patterns induced by these mutagens in the HIMA corresponded to those found in human tumours from patients exposed to these mutagens. The approach presented helps to deepen our understanding of human cancer aetiology.
Collapse
Affiliation(s)
- Lisa Hölzl-Armstrong
- Department of Analytical, Environmental and Forensic Sciences, King’s College London, London SE1 9NH, UK; (L.H.-A.); (J.E.K.); (D.H.P.)
| | - Jill E. Kucab
- Department of Analytical, Environmental and Forensic Sciences, King’s College London, London SE1 9NH, UK; (L.H.-A.); (J.E.K.); (D.H.P.)
| | - Michael Korenjak
- Molecular Mechanisms and Biomarkers Group, International Agency for Research on Cancer, 69008 Lyon, France; (M.K.); (J.Z.)
| | - Mirjam Luijten
- Center for Health Protection, National Institute for Public Health and the Environment (RIVM), 3721 MA Bilthoven, The Netherlands;
| | - David H. Phillips
- Department of Analytical, Environmental and Forensic Sciences, King’s College London, London SE1 9NH, UK; (L.H.-A.); (J.E.K.); (D.H.P.)
| | - Jiri Zavadil
- Molecular Mechanisms and Biomarkers Group, International Agency for Research on Cancer, 69008 Lyon, France; (M.K.); (J.Z.)
| | - Volker M. Arlt
- Department of Analytical, Environmental and Forensic Sciences, King’s College London, London SE1 9NH, UK; (L.H.-A.); (J.E.K.); (D.H.P.)
| |
Collapse
|
48
|
Raffan S, Halford NG. Acrylamide in food: Progress in and prospects for genetic and agronomic solutions. THE ANNALS OF APPLIED BIOLOGY 2019; 175:259-281. [PMID: 31866690 PMCID: PMC6899951 DOI: 10.1111/aab.12536] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/12/2019] [Accepted: 07/13/2019] [Indexed: 05/12/2023]
Abstract
Acrylamide is a processing contaminant and Group 2a carcinogen that was discovered in foodstuffs in 2002. Its presence in a range of popular foods has become one of the most difficult problems facing the food industry and its supply chain. Wheat, rye and potato products are major sources of dietary acrylamide, with biscuits, breakfast cereals, bread (particularly toasted), crispbread, batter, cakes, pies, French fries, crisps and snack products all affected. Here we briefly review the history of the issue, detection methods, the levels of acrylamide in popular foods and the risk that dietary acrylamide poses to human health. The pathways for acrylamide formation from free (non-protein) asparagine are described, including the role of reducing sugars such as glucose, fructose and maltose and the Maillard reaction. The evolving regulatory situation in the European Union and elsewhere is discussed, noting that food businesses and their suppliers must plan to comply not only with current regulations but with possible future regulatory scenarios. The main focus of the review is on the genetic and agronomic approaches being developed to reduce the acrylamide-forming potential of potatoes and cereals and these are described in detail, including variety selection, plant breeding, biotechnology and crop management. Obvious targets for genetic interventions include asparagine synthetase genes, and the asparagine synthetase gene families of different crop species are compared. Current knowledge on crop management best practice is described, including maintaining optimum storage conditions for potatoes and ensuring sulphur sufficiency and disease control for wheat.
Collapse
Affiliation(s)
- Sarah Raffan
- Plant Sciences DepartmentRothamsted ResearchHarpendenUK
| | | |
Collapse
|
49
|
Zavadil J, Rozen SG. Experimental Delineation of Mutational Signatures Is an Essential Tool in Cancer Epidemiology and Prevention. Chem Res Toxicol 2019; 32:2153-2155. [PMID: 31509385 DOI: 10.1021/acs.chemrestox.9b00339] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Advances in experimental modeling of the mutational signatures of environmental exposures and endogenous mutagenic processes will elucidate the role of mutagenesis in cancer, facilitate carcinogen classification, and enable new molecular cancer epidemiology studies.
Collapse
Affiliation(s)
- Jiri Zavadil
- Molecular Mechanisms and Biomarkers Group, Mechanisms of Carcinogenesis Section , International Agency for Research on Cancer/World Health Organization , 150 cours Albert Thomas , 69008 Lyon , France
| | - Steven G Rozen
- Duke-NUS Centre for Computational Biology and Cancer and Stem Cell Biology Program , Duke-NUS Medical School Singapore , 8 College Road , Singapore 169857 , Republic of Singapore
| |
Collapse
|
50
|
Sirot V, Rivière G, Leconte S, Vin K, Traore T, Jean J, Carne G, Gorecki S, Veyrand B, Marchand P, Le Bizec B, Jean-Pierre C, Feidt C, Vasseur P, Lambert M, Inthavong C, Guérin T, Hulin M. French infant total diet study: Dietary exposure to heat-induced compounds (acrylamide, furan and polycyclic aromatic hydrocarbons) and associated health risks. Food Chem Toxicol 2019; 130:308-316. [PMID: 31102675 DOI: 10.1016/j.fct.2019.05.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/04/2019] [Accepted: 05/07/2019] [Indexed: 01/26/2023]
Abstract
A total diet study (TDS) was conducted between 2010 and 2016 to assess the risk associated with chemicals in food of non-breast-fed children from 1 to 36 months living in France. Food samples were collected, prepared "as consumed", and analyzed for chemicals of public health interest. Acrylamide, furan and polycyclic aromatic hydrocarbons (PAHs) were analyzed as heat-induced compounds produced mainly during thermal processing of foods. Dietary exposure was assessed for 705 representative children using food consumptions recorded through a 3-consecutive-days record. As all calculated margins of exposure (MOE) for PAHs exceeded 10 000, dietary exposure of the infant and toddler population was deemed tolerable with regard to the carcinogenic risk. Conversely, the exposure levels to acrylamide and furan were considered as of concern, requiring management measures to reduce the exposure essentially by reducing the formation of heat-induced compounds during food production or preparation processes. Efforts should mainly focus on major contributors to the exposure, i.e. sweet and savoury biscuits and bars, and potatoes and potato products for acrylamide, baby jars of vegetables, with or without meat or fish for acrylamide and furan.
Collapse
Affiliation(s)
- Véronique Sirot
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France.
| | - Gilles Rivière
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France
| | - Stéphane Leconte
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France
| | - Karine Vin
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France
| | - Thiema Traore
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France
| | - Julien Jean
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France
| | - Géraldine Carne
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France
| | - Sébastien Gorecki
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France
| | | | | | | | - Cravedi Jean-Pierre
- Toxalim, Université de Toulouse, INRA, INP-ENVT, INP-EI-Purpan, Université de Toulouse Paul Sabatier, Toulouse, France
| | - Cyril Feidt
- URAFPA, Université de Lorraine, INRA, 2 avenue de la forêt de Haye, F-54500, Vandoeuvre, France
| | - Paule Vasseur
- University of Lorraine, CNRS UMR, 7360, Metz, France
| | - Marine Lambert
- Université Paris-Est, Anses, Laboratory for Food Safety, F-94701, Maisons-Alfort, France
| | - Chanthadary Inthavong
- Université Paris-Est, Anses, Laboratory for Food Safety, F-94701, Maisons-Alfort, France
| | - Thierry Guérin
- Université Paris-Est, Anses, Laboratory for Food Safety, F-94701, Maisons-Alfort, France
| | - Marion Hulin
- Risk Assessment Department (DER), French Agency for Food, Environmental and Occupational Health & Safety (ANSES), 14 Rue Pierre et Marie Curie, F-94701, Maisons-Alfort, France
| |
Collapse
|